Answer: True
Explanation:
The geologist determines there is 78.3% of the parent remaining in the sample that they examine. How old is the sequence of rocks?
a. 187.5 million years
b. 247.8 million years
c. 390.7 million years
d. 2.504 billion years
e. 1.588 billion years
f. 1.202 billion years
Answer:
e. 1.588 billion years
Explanation:
the sequence of rocks IS 1.588 billion years
The distance between Sydney (Australia) and Tokyo (Japan) is shorter than between:
A. Tokyo & Cape Town
B. Sydney & Hong Kong
C. Tokyo & London
D. Sydney & Jakarta
E. All of them
Answer:
Explanation:
Distance between Sydney and Tokyo is 7819 km
Between tokyo and capetown ( south africa ) is 9157 km
Between Tokyo and London is 9556 km
Between sydney and Honk Kong is 7371 km
so , distance between Sydney (Australia) and Tokyo (Japan) is shorter than between Tokyo and Capetown ( south africa )and between Sydney and Jakarta .
Answer:
A
Explanation:
The distance between Sydney (Australia) and Tokyo (Japan) is shorter than between Tokyo & Cape Town
Name five general non-specific defense mechanisms that act quickly to fight a wide variety of ""invaders.""
Answer:
The five general non-specific defense mechanisms that act quickly to fight a wide variety of invaders are:
Antimicrobial proteins Phagocytes Natural killer cells Inflammation FeverExplanation:
Antimicrobial proteins are the type of proteins which fight against microbes like bacteria and parasites. Phagocytes are the cell that engulf foreign substances when they are detected in the body. Natural killer cells are the part of innate immune system that fight against viral infections and is responsible for host rejection of tumor. Inflammation is mechanism of the body that occurs when foreign substances are detected in the body. Fever is the result of inflammation and immune response against microbes.Ethnic Chinese living in South East Asian countries have played an important role in _______.
Final answer:
Ethnic Chinese in Southeast Asia have played a crucial role in establishing global business ties within the Pacific Rim and contributing to the region's economic growth, including the rise of the East Asian Tigers.
Explanation:
Ethnic Chinese living in South East Asian countries have played an important role in promoting the global business arrangements that have established the Pacific Rim as a significant force in the international economy. During the colonial era and the last Chinese dynasties, there was a significant exodus of Chinese to the realm of Southeast Asia. This led to the rise of Chinatowns across major cities in the region. Despite facing discrimination and challenges such as the harsh conditions during World War II and religious or socioeconomic conflicts, the overseas Chinese minority retained economic advantages due to their former colonial status and vast economic networks.
These communities have been key in the development of the region's economic landscape, contributing to the wealth and variety of trade and business in the area. Their presence has helped cultivate the economic partnerships that helped transform the region into a hub for international trade, contributing greatly to what is known today as the East Asian Tigers - the rapidly developing economies of Taiwan, Singapore, Hong Kong, and South Korea. The interconnectedness facilitated by these ethnic Chinese communities in trade, finance, and cultural exchanges has been instrumental in the economic advances witnessed across Southeast Asia.
What connections did you make this week between the geography of Pakistan and the Partition of India? How are they related? Why is this important?
Answer and Explanation:
The doctrine of the two countries was the foundation of the Pakistan Movement (i.e., the idea of Pakistan as an Islamic state in South Asia) and the separation of India in 1947.… It means an explicit part of India in the Muslim world in India. non-Muslims.
The All Muslim Muslim League was formed in 1907. Pakistan was created, as an Islamic state, with the separation of the British Indian Kingdom, independence in August 1947. Differences led to chaos, large numbers of people, and massive cyclones. Millions have migrated to places they hoped would be safe for security, while Muslims were going to Pakistan, and Hindus and Sikhs feared India.
The part of India had a significant impact on the millions of people who lived in India in the 1940s. Partition forced millions of people to leave their homes and move to another state.
The expansion of PAKISTAN is P for Punjab, A for Afghanistan, K for Kashmir, S for Sindh, and Istanbul from Baluchistan. So before 1947, the name existed for the region given the name of the city before independence called India or the British Raj.
The connection between the geography of Pakistan and the Partition of India is important in understanding the creation of the two nations, the border disputes, and the historical, political, and cultural context of the region.
Explanation:The geography of Pakistan and the Partition of India are intrinsically linked. In 1947, Britain, the then colonial power, decided to partition India into two separate nations: predominantly Hindu India and predominantly Muslim Pakistan. The geography of this partition was based on districts with Muslim-majority populations, and these districts today form modern-day Pakistan. This geographical borderline led to mass migrations, conflicts, and endemic tensions between the two nations.
The geographical proximity of these two nations, their shared borders, and similar climatic conditions have often been sources of discord. These geographical realities polarize the two nations and intensify border disputes such as the ongoing Kashmir conflict. The connection between the geography of Pakistan and the Partition of India helps us better understand the historical, political, and cultural context of the region.
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When Whitlock Clothiers began overseas operations, top management had to learn to appreciate the _____ environments of other countries-that is, other people's systems of shared beliefs, values, customs, and behaviors.
Answer:
The response is cultural environments.
Explanation:
When a business begins to conduct business overseas, they have to take into consideration the cultural differences that exist in the country where they are beginning operations. The local population will likely have different behaviors and beliefs when it comes to work culture and even in terms of the acceptance of a new product in their market. One example of a cultural difference is how in the United States people generally are very uncomfortable with silence so a long pause in a business meeting is considered rude or being under-prepared. In Asian cultures like Korea or Japan silence is not considered the same way and people often remain silent without it necessarily signaling a problem. In Korea pauses are allowed for contemplation of something said.
if the civil war can be said to have spanned the period between 1850 and 1877, then which north or south side achieved its goal
Answer:
North
Explanation:
The North can be said to have best achieved its civil war and reconstruction goals. The North won the war.It took control of the south.by the end of the war the south was in total destruction in terms of the economy and agriculture as plantations were already destroyed.
Final answer:
During the American Civil War, the Union (North) aimed to preserve the nation and eventually abolish slavery, while the Confederacy (South) fought for independence and the continuation of slavery. The North achieved its goals by defeating the Confederacy and passing the Thirteenth Amendment, thus maintaining a unified country and ending slavery.
Explanation:
The American Civil War, spanning from 1861 to 1865, had vastly different goals for the Northern and Southern states. The Union (North) fought predominantly to preserve the nation as a whole and bring the rebel states back into the United States. President Abraham Lincoln's primary objective was to restore the Union, but the abolition of slavery also became a central aim as the war progressed.
The Confederacy (South), on the other hand, fought to secede from the United States and establish itself as an independent nation with the continuation of slavery. In the end, the North achieved its goal of maintaining a unified country with the defeat of the Confederacy, and the Thirteenth Amendment to the Constitution, which abolished slavery, made the Union's secondary aim a reality as well.
In the broader period between 1850 and 1877, including the Reconstruction era after the war, the Northern vision for America prevailed. Although the process was arduous and the nation underwent great strife, the Union's victory ultimately led to the reintegration of the Southern states into the United States and the end of slavery, signifying that the North achieved its overarching goals.
_______ is uniquely vulnerable to sea level rise for a non-island nation, because so much of its land is only a few meters above sea level.
Bangladesh is uniquely vulnerable to sea level rise for a non-island nation because a large portion of its land is only a few meters above sea level. This height makes the nation extremely vulnerable to rising sea levels due to global warming. The available land size might reduce, and there would be shortages of fresh water as the cycle of refreezing and melting of glaciers, poles, and mountains is altered.
Explanation:The nation uniquely vulnerable to sea level rise, even though it is not an island, is Bangladesh. The reason for this is much of Bangladesh's land is only barely above sea level. Therefore, it is extremely vulnerable to sea level rise resulting from global warming which will raise the ocean levels due to meltwater from glaciers and because warmer water occupies greater volume. As the global warming continues and ice melts, the shorelines will be inundated, reducing the size of the land that is available for use. This could also result in an overabundance of salt water and a shortage of fresh water as the continued melting and refreezing cycle of poles, glaciers, and higher elevation mountains is jeopardized.
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Based on the conceptual models of warm and cold fronts over the continental US as presented in chapter 11, identify each of the following as being a characteristic of either a warm front or cold front. advancing warm, moist air overruns cooler and drier air stable conditions along the ont in winter,rain, freezing rain, sleet and snow are common advancing cold, dry air vigorously lifts slower moving warm, moist air
Answer:
advancing warm, moist air overruns cooler and drier air --- Warm front.stable conditions along the font --- warm front.in winter rain, freezing rain, sleet and snow are common --- Warm front.advancing cold, dry air vigorously lifts slower moving warm, moist air --- Cold front.Explanation:
The cold weather font is described as the change over of the cold air mass and they replace the warm fronts and usually move for the northwest to the southeast. The freezing and the snow are more common in the northern parts of the warm fronts and they occur if the warmer layer is deep and only a shallow layer of below freezing in the air. As the stationary front marks the boundary between the two air masses and often occurs due to the changing character of the low air masses and are especially found when the front is in an area of the low pressure.In a series of undisturbed sedimentary rock layers, the oldest layers are A. On the bottom B. On the top C. variable depending on location
Answer: B. On the top
Explanation:
If a thunderstorm were over your house right now and it produced radar reflectivity echoes of 47 dBZ over an area for 2 hours. How much rain would have fallen in that area over this timer period?
Select one:
a. 1.3 inches
b. 2.6 inches
c. 4 inches
d. 5 inches
e. Doppler radar cannot measure the total amount of rainfall. It can only measure the intensity of the rain at any given moment.
Answer:
Option E
Explanation:
Doppler radar measures velocity precipitation particles in a precipitating region and can not be used to calculate amount of rain( a rain gauge is the instrument used to measure amount of rain.)
Volcanic island arcs are associated with __________ .
a)transform plate boundaries
b)divergent plate boundaries
c)ocean-ocean convergent plate boundaries
d)ocean-continent convergent plate boundaries
Answer:C)ocean-ocean convergent plate boundaries
Explanation: Ocean-ocean convergent plate boundaries are boundaries formed along Volcanic arcs,this type of arcs happen beneath the Ocean,and are formed on adjacent plates.
Volcanic Island arcs are different from island arcs because Island arcs form continental Tectonic plates boundaries, this type of volcanic eruptions are accompanied by Rings of fire and they surround the Pacific Ocean.
Volcanic island arcs are associated with ocean-ocean convergent plate boundaries. This is caused by one tectonic plate subducting beneath another, leading to volcanic activity and the formation of undersea mountains.
Explanation:Volcanic island arcs are typically associated with ocean-ocean convergent plate boundaries. In these scenarios, one oceanic tectonic plate subducts beneath another, creating deep trenches and generating seismic activity. As the subducting plate descends and melts due to pressure and heat, volatile compounds rise, causing melting in the overlying mantle and crust. This results in the formation of magma, which rises to form volcanoes and undersea mountains, collectively known as a volcanic island arc. Examples include Japan’s Ryukyu Islands and the Aleutian Islands in Alaska.
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In what direction do extra-tropical cyclones typically track across the United States
Answer:
They are counterclockwise in the northern hemisphere, and clockwise in the southern hemisphere.
Explanation:
Owning to the effects of the Coriolis force the extratropical cyclones move in the counterclockwise direction in the northern hemisphere and to the opposite in the southern hemisphere, and they are also called s the midlatitude cyclone. And they drive the air over the earth's surface and are capable of producing anything. In the united states, they move to form the south to the northern direction. And thus are given the warm waves in the U.S in their life cycle.g According to the geothermal gradient, rocks buried 75 km beneath the surface would normally be at what temperature? At 75 km depth, rocks will be heated to about _______ degrees Celsius.
Answer:
2250° C
Explanation:
The geothermal gradient is measured with the respect to the changes in the temperature of the plates at the various depths. And away from the plate tectonic boundaries it goes on increasing and is expressed the 30 degrees per celsius and the earth internal heat comes to form the planets heat and planetary acceleration.Rocks buried 75 km beneath the surface would be heated to about 2000 degrees Celsius.
Explanation:According to the geothermal gradient, the temperature of rocks buried 75 km beneath the surface would normally be around 2000 degrees Celsius. The Earth's geothermal gradient is the rate at which temperature increases with depth below the surface. On average, the geothermal gradient is about 25 to 30 degrees Celsius per kilometer. Therefore, by multiplying the geothermal gradient by the depth of 75 km, you can estimate the temperature to be about 2000 degrees Celsius.While it is true that the Earth's interior is hotter than the surface, the geothermal gradient—the rate at which temperature increases with depth—varies depending on factors such as location and geological conditions.
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Which of the following characterizes slash-and-burn agriculture in Sub-Saharan Africa?
Farmers generally produce enough to feed their families and sell any surplus at the local market.
In slash-and-burn agriculture, the cleared land is used exclusively to raise livestock.
Slash-and-burn agriculture only recently has been introduced to the region.
Slash-and-burn agriculture utilizes machinery such as tractors, combines and center-pivot irrigation.
Slash-and-burn agriculture is the most productive of all forms of agriculture.
Answer:farmers generally produce enough to feed there families and sell any surplus at the local market
Explanation: this is a type of shifting cultivation where a farmer clears an area of a forest and then burn it before planting only to move to another part when that area looses it's fertility or the fertility is been reduced.
a) Farmers generally produce enough to feed their families and sell any surplus at the local market.
Clearing Land: Farmers begin by clearing a patch of forest land. They cut down trees and underbrush to create space for farming.
Burning Vegetation: After the vegetation is cut, it is allowed to dry before being burned, usually just before the rainy season. The burning process creates ash, which serves as a natural fertilizer, enriching the soil with vital nutrients.
Cultivating Crops: With the nutrient-rich soil, farmers plant their crops. Typically, they may grow staples such as tubers or grains. This initial period often allows for high productivity.
India Why do so many people find the idea of eating kutti pi offensive? Who are the Anglo-Indians?
People find the idea of kutti pi offensive because the dish is made with the fetus of animal.
Explanation:
Kutti pi is eaten by the Anglo Indians , this dish is made from fetus of animal.
People consider eating kutti pi offensive because this dish is made from unborn animal which is far more different than an egg or a grown animal . As in this dish the baby is being killed in the fetus thus people consider eating kutti pi offensive.
The Anglo Indians are a combination of Indian as well as foreigner that is they are born from Indian mother and Foreigner father or vice versa . As no other culture will accept that, that's why they thought of making their own culture as well as in their culture then can eat whatever they want.
The line connecting the points of maximum flattening on Earth's surface is called the ________.
Answer: AXIS.
Axis in geography can be said to be an imaginary line around which an object turns. Usually a round object, can be a planet, asteroid, moon etc.
The points where an axis intersects with an object's surface are the object's North and South Poles.
Rotation about a fixed axis is a special case of rotation. Whereby an object rotates along an imaginary line.
The area of the track forecast cone is drawn so that the actual position of the storm will be within the cone approximately:
Answer:
Hi
The findings of the National Hurricane Center on the trajectory of a tropical cyclone are subject to a certain margin of error. Such a fluctuation in the prediction of the trajectory of a cyclone is known as a cone, due to the shape of the region where the center of the hurricane could pass has that shape. To form the cone, a series of imaginary circles are placed along the predicted path of the hurricane, in the following time positions: 12, 24, 36, 48, 72, 96 and 120 hours. In this way, the size of each circle contains 67% of the margin of error of the official protocols of the last five years. Therefore, the cone is then formed by the union of the set of circles that represent the predicted trend of the passage of any hurricane.
Explanation:
_____ is a notably elongated country with a long coastline provides it with easy to access marine resources.a. Laosb. Cambodiac. Vietnamd. Burma
Answer:
c. Vietnam
Explanation:
Vietnam is a notably elongated country with a long coastline provides it with easy to access marine resources
Answer:
Vietnam
Explanation:
Vietnam is a notably elongated country with a long coastline that provides it with easy to access marine resources.
On a surface weather chart for the United States, which of the following would normally be observed in the vicinity of a surface low pressure center?a. Isobars are spaced relatively far apartb. Precipitation reported in surface observationsc. Light winds reported in surface observationsd. Surface observation wind directions illustrate counter-clockwise air flow around the low pressure center
Complete question:
On a surface weather chart for the United States, which of the following would normally be observed in the vicinity of a surface low pressure center?
a. Isobars are spaced relatively far apart
b. Precipitation reported in surface observations
c. Light winds reported in surface observations
d. Surface observation wind directions illustrate counter-clockwise air flow around the low pressure center
Answer: Surface observation wind directions illustrate counter-clockwise air flow around the low pressure center. (Option D)
Explanation: Surface observation wind directions illustrate counter-clockwise air flow around the low pressure center (cyclone). In vicinity like this, pressure measured is low compared to its surroundings and hence, horizontal direction away from the cyclone will cause pressure increment.
Final answer:
In the vicinity of a surface low pressure center on a weather chart, one would observe counter-clockwise airflow and possibly precipitation. Isobars are closer together, indicating a stronger pressure gradient and thus stronger winds.
Explanation:
On a surface weather chart for the United States, in the vicinity of a surface low pressure center, one would normally observe certain phenomena like precipitation reported in surface observations and surface observation wind directions illustrating a counter-clockwise airflow around the low pressure center. This counter-clockwise circulation is a result of the Coriolis effect and indicates convergence near the center of the low pressure system. Moreover, isobars tend to have a V-shape where they cross the fronts, signifying a trough of lower pressure.
Therefore, the correct answer to the student's question is that wind directions on surface observation will illustrate counter-clockwise airflow around the low pressure center, which corresponds to option (d). Precipitation is also common near low pressure centers, addressing option (b).
Circle those attitudes that are impossible (i.e., a bed with the indicated strike cannot possibly dip in the direction indicated).and why are they not possible?
a) 314º, 49ºNW
f) 333º, 15ºSE
b) 086º, 43ºW
g) 089º, 43ºN
c) N15ºW, 87ºNW
h) 065º, 36ºSW
d) 345º, 62ºNE
i) N65ºW, 54ºSE
e) 062º, 32ºS
j) 125º, 30º NW
In the Mercator projection, which piece of the Earth is portrayed ridiculously large in comparison to its actual size?
Answer:
the lower peace is portrayed ridiculously large in comparison to its actual size
The Tuna Dolphin Case was AT. A Greenpeace campaign to stop American fishers from killing dolphins while harvesting tuna. B. A case that ignited protest at the World Trade Organization meeting in Seattle in 1999. Protestors dressed as dolphins and harassed trade ministers. C. An international lawsuit brought to GATT by Central and South American countries against the US for imposing unfair standards for the harvesting of tuna. D. An international campaign by the Whale and Dolphin Conservation Society to protect dolphins..
Answer:
The answer is C. An international lawsuit brought to GATT by Central and South American countries against the US for imposing unfair standards for the harvesting of tuna.
Explanation:
The Tuna Dolphin Case was a case that Central and South American tuna exporters lodged against the United States; the case, in which complaints were made against United States embargoes on tuna products from Central and South American countries that didn't protect dolphins while they harvested tuna, was lodged at General Agreement on Tariffs and Trade (GATT) committee, and later at the World Trade Organization (WTO).
The Tuna Dolphin Case refers to an international legal challenge by Latin American countries against the United States over regulations concerning dolphin-safe tuna fishing. The broader context of the case includes dolphin conservation efforts, sustainable fishing practices, and the challenges of managing migratory fish species like tuna in a global context.
The Tuna Dolphin Case often refers to C. An international lawsuit brought to GATT (General Agreement on Tariffs and Trade) by Central and South American countries against the US for imposing unfair standards for the harvesting of tuna.
The case stems from the larger issue of dolphin conservation and sustainable tuna fishing. The United States, through amendments in the Marine Mammal Protection Act, mandated that U.S. retailers exclude tuna caught using methods that set nets on dolphin schools, leading to the adoption of dolphin-safe tuna fishing standards. These regulations included no use of drift gill nets to catch tuna, no accidental killing or serious injury to dolphins, and the presence of an independent observer to ensure compliance.
In the midst of these conservation efforts, high-profile tuna brands and various non-governmental organizations (NGOs) pressed for responsible fishing practices and the sustainability of tuna populations, which have been emblematic of global conservation issues. Due to the animal's migratory nature, international collaboration, such as the International Commission for the Conservation of Atlantic Tunas (ICCAT), is essential for effective management and conservation. However, the challenge is exacerbated by issues like overcapacity of fishing fleets and the lack of enforcement authority in international organizations.
Which of the following forests would the National Forest Management Act of 1976 most effectively protect from harmful logging? (2 points)
I. A forest managed by the U.S. Forest Service
II. A forest certified by the Forest Stewardship Council
III. A forest certified by the Sustainable Forestry Initiative
I only
II only
III only
I and II only
I and III only
Answer:
I. A forest managed by the U.S. Forest Service
Explanation:
The NFMA's primary mission is to ask the US Forest Service to develop a plan for national forests, set up wood-selling standards, and establish a policy to regulate harvesting. The purpose of these goals is to protect the national forests from overfishing and permanent damage without breaking the net. Congress requires the Forest Service, along with other relevant agencies, to thoroughly assess, investigate and plan the country's use of renewable resources, its current demand, anticipated requirements, and its environmental and economic impacts. The NFMA changed forest planning by forcing the US Forest Service to apply a systematic and interdisciplinary approach to resource management. It also ensured the community's involvement in the development and review of forest plans. In addition, NFMA has established and expanded several Forest Service Trust funds and personal accounts. [4] Expanded Land and Resource Management Plans (L / RMP), as enshrined in the 1974 Forest and Pasture Planning Act (RPA), allowing the Forest Service to carry out all the land inventory and subsequent remediation activities. The most appropriate land use process is called 'compliance assessment'. [5] These plans require the use of alternative land management options with potential resource implications (wood, ridge, mining, recreation). socio-economic impact on local communities. In conjunction with the Federal Emergency Management Agency (Forest Service), the Forest Service provided significant resources for establishing the FORPLAN (a linear programming model used to assess land management resource outcomes) and IMPLAN to assess its economic impact locally. associations. When the NFMA was written, there were conflicting interests in the proper management of forests. The largest player of the national forest department at that time was the timber industry. II. In the post-World War II economy, wooden boom demand grew rapidly, and people were growing more in public areas than ever before. Visitors to national parks rose from 50 million in 1950 to 72 million in 1960. The Sierra Club and other conservation groups also struggled to protect the natural landscape. The Multiple Use Sustainability Act of 1960 clarified that the Forest Service must manage non-tree values such as recreation, area, basin, live and fishing purposes, but it is clear that these uses do not reflect NFMA. forest planning process
g Why are there active volcanoes along the Pacific Coast of Washington and Oregon, but not along the east coast of the United States?
Answer:
Cascade volcanoes
Explanation:
The volcanoes of the mount st Helens and the mount rainier, mount Adams and those of the Oregon ae the mount hood, mount Jefferson and mount baker. These volcanoes form a part of the volcanic arcs of the western port America and are part of the ring of the fore and the Cascade subduction zone and geologically are numerous shields and the stratovolcanoes and the lava domes.If you were planning to spend a year living abroad, where would you need to pack the greatest range of clothes (for hot and cool weather)? O the Tropic of Capricorn O Northwestern Eurasia the center of Eurasia O Northeast Eurasia O the center of the Sahara Desert
Answer:
Northwestern Eurasia
Explanation:
Geographically the northwestern part of the Eurasia consists of the Ireland, the United Kingdom, Belgium, the Netherlands, Northern Germany, Luxembourg, the Northern France, and the Denmark, and the Norway, the Sweden and the Iceland. Finland, Southern Germany, the Switzerland these are all the countries that are located near the arctic circle and thus have a cool and cold climate and some are characterized by the oceanic climate type and thus one needs to have thick cloths in order to spend entire year.1. What percent of the Earth’s surface is covered by oceans? How did you calculate this percentage?
The Earth's surface is covered by 71 percent of the Ocean. As result, the Earth's surface has another 29 percent of green space which needs to be taken into account by the people.
Write about the Earth's Surface.The Earth's Surface is the surface that has made the living conditions for the people. The Earth's Surface over the years has been very much important and also looked into the understanding of the same.
The Erath's Surface is pretty much solid and also very hard with a lot of rocks and also plateaus. There are also a lot of mountains which have covered the land. The Earth's surface is very much rich in minerals because of the surface of the Earth. The other most important thing is that the understanding of the same would have been understood to have taken place.
The Earth's Surface is made up of nitrogen and also Oxygen. in fact the Earth's Surface has also a lot to do with it and thus makes it understandable.
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Which of the following increases with distance from a mid-ocean ridge?
a)the age of oceanic lithosphere
b)the depth to the sea floor
c)the thickness of the lithosphere
d)all of the above
Answer:
d) all of the above
Explanation:
As the concept of the seafloor spreading takes place on the earth the older and more denser plates thus to move far away from the mid-oceanic ridges that is continuous source of the lava flows and is a divergent plate boundary and is thus the age, density, and the thickness of the oceanic crust increase with the distance from the ridges.The age of oceanic lithosphere, the depth to the sea floor, and the thickness of the lithosphere all increase with distance from a mid-ocean ridge.
Explanation:The correct answer is d) all of the above. As you move away from a mid-ocean ridge, the age of the oceanic lithosphere increases. This is because new oceanic crust is continuously being formed at mid-ocean ridges, pushing older crust away from the ridge.
The depth to the sea floor also increases with distance from a mid-ocean ridge. This is because as the newly formed crust moves away from the ridge, it cools and contracts, causing it to sink deeper into the mantle.
The thickness of the lithosphere also increases with distance from a mid-ocean ridge. Again, this is due to the cooling and contraction of the oceanic crust as it moves away from the ridge.
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Earth reinforcing can be an economical alternative to the use of: Select one:
a. Caissons
b. Rakers
c. Cantilever footings
d. Conventional retaining walls
e. Soil mixing
Answer: Earth reinforcing
Explanation: Earth reinforcing is a method of strengthening the soil/ground when constructing foundation by combining materials such as steel or concrete to the soil. It is especially useful for the construction of conventional retaining walls or mining structures.
Historically, steel nets were used on areas with soft clay, such as sea beds. Some materials used now include Geonets and geogrids.
Earth reinforcing, which involves strengthening soil with synthetic materials, can be a cost-effective alternative to conventional retaining walls, caissons, rakers, cantilever footings, and soil mixing in engineering contexts. It provides the necessary strength and stability at a fraction of the cost.
Explanation:Earth reinforcing refers to the use of materials that reinforce, or strengthen, soil in engineering contexts. This can be an economical alternative to more expensive options, such as conventional retaining walls, caissons, rakers, cantilever footings, and soil mixing. These traditional materials and methods can be costly and time-consuming, whereas Earth reinforcing can provide sufficient strength and stability while being more cost-effective.
Conventional retaining walls, for example, can be expensive to build and maintain. They are designed to hold back soil and prevent erosion, but their construction often requires large amounts of concrete and steel, leading to high costs. Earth reinforcing, on the other hand, uses geotextiles or geogrids (synthetic materials) that can be easily installed into the ground to improve soil stability, significantly reducing costs.
Similarly, caissons, designed to bear the load of structures, rakers as temporary support systems in excavations, and cantilever footings as foundations, all require substantial resources and costs. Soil mixing, a method of ground improvement, also demands industrial equipment and additional materials, making it costlier than earth reinforcement.
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Death Valley National Park contains the point with the lowest surface elevation in the Western Hemisphere, and from that point you can look over two miles upward to the peaks of the Sierra Nevada. Why is Death Valley so deep?
Answer:
A lot of factors over time might have led to the formation of Death Valley.
In geological terms, it is a graben. A graben is a depressed block of the crust of a planet bordered by parallel faults. It is the sinking of the bedrock lying between parallel, uplifted, tilt-block mountain ranges. Grabens occur side-by-side with horsts. These structure indicate tensional forces and crustal stretching.
Other factors such as volcanic activities, erosion, evaporation of lakes during the Ice Ages and so on.
Even right now, it still undergoes geological changes.
Death Valley is deep due to geological processes making the ground sink, and erosion wearing away the rock and soil. Concurrently, the Sierra Nevada has been uplifted due to tectonic plate movements, contributing to the dramatic height difference.
Explanation:Death Valley is so deep due to a combination of geological processes. It is located in a region of the Earth's crust that is being stretched, causing the ground to sink, a process known as basin and range topography. Furthermore, erosion, primarily from water and wind, wears away the rock and soil in the valley.
The Sierra Nevada on the other hand, is a mountain range, and has been uplifted over millions of years due to the movement of tectonic plates. As a result of these concurrent processes - sinking of the valley and uplift of the mountains - you get the dramatic elevation difference observed.
So, the deepness of Death Valley isn't just about how much it has eroded or sunk. It can also be attributed to the relative height of the surrounding terrain, particularly the Sierra Nevada.
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