Answer:
The magtnetic feild is generated by eletric currents due to the motion of convection currents of the molten iron in the Earths outer core. These convection currents are caused by heat escaping from the core, a natural process called a geodynamo.
Explanation:
Earth's magnetic field is generated by the movements of molten metals in its liquid outer core. These movements produce electric currents through the dynamo effect, creating a magnetic field that shields the planet from harmful solar wind and cosmic radiation.
The Earth's magnetic field is critically important for life on Earth. Here's a detailed explanation:
Outer Core: The primary source of Earth's magnetic field is the liquid outer core, primarily composed of molten iron and nickel. The movement of these molten metals generates powerful electric currents.Thermal and Compositional Currents: Within the liquid outer core, thermal and compositional currents arise due to temperature and pressure differences. When coupled with the Earth's rotation, these currents produce the geomagnetic field.Dynamo Effect: The process responsible for generating the magnetic field is called the dynamo effect. This involves the motion of the liquid metal that creates and maintains the magnetic field.Protection from Solar Wind: The magnetic field plays a vital role in shielding Earth from the solar wind, a stream of charged particles from the sun that can strip away the atmosphere and harm life by allowing harmful ultraviolet rays.Magnetosphere: The region enveloped by Earth's magnetic field, known as the magnetosphere, further extends thousands of kilometers into space, providing additional protection from cosmic radiation.In summary, the dynamic movements of molten metals in the Earth's liquid outer core, driven by thermal and compositional currents and the Earth's rotation, are responsible for generating and maintaining the planet's magnetic field.
Which stage of the water cycle removes water from a watershed?
Which best describes the pros and cons for Middle Eastern countries that restrict nonagricultural water use?
A.The price of water goes down, which decreases the need for people to find new ways of reusing the natural resource.
B.The price of water goes up, which increases the need for people to find new ways of reusing the natural resource.
C.The production of food goes down, which increases the need for imported goods and raises unemployment.
D.The production of food goes up, which decreases the need for imported goods and lowers unemployment.
Answer:
B
Explanation:
B- The price of water goes up, which increases the need for people to find new ways of reusing the natural resource.
The most populous cities in the Northeast are ___.
A: along inland waterways
B: in the Appalachian Mountains
C: along the Atlantic coast
D: in the farming coast
The most populous cities in the Northeast are along the Atlantic coast.
Explanation:The most populous cities in the Northeast are along the Atlantic coast. Cities like New York City, Boston, and Philadelphia are located along the coast and have large populations due to factors such as trade, employment opportunities, and colonial settlement. The most populous cities in the Northeast are along the Atlantic coast. These cities developed advantages in transportation, such as ports and navigable rivers, which allowed for growth and prosperity. The most populous cities in the Northeast are along the Atlantic coast.
Logging is the main threat to old growth forests found in the Northwest United States True or false
Rollo was a Viking leader who settled in Normandy.
TrueFalse
What composition of magma is primarily involved in the construction of a shield volcano?
Which of these would MOST LIKELY have a negative effect on Colombia's international trade relations?
A) the country's trade policies with neighboring nations
B) the increase in the possibility of volcanic eruptions
C) the country's participation in the sale of illicit drugs
D) the increase in air and water pollution across the country
The correct order of evolutionary stages for a solar mass star is
What is a microloan?
Question 7 options:
a very small government aid package for developing countries
a small loan to finance education for families in underdeveloped countries
very small, short-term loan for a small business owner in an underdeveloped country
a very small community support program in an underdeveloped country
A microloan is a very small, short-term loan for a small business owner in an underdeveloped country.
What is a loan?In finance language, a loan is an amount of money given to another person in exchange for repayment, the borrower has to give the loan amount as well as the interest of the taken loan they have taken. There are some terms and conditions being liable to the person who takes the loan.
There are different banks and organization are being there who provides loan and be given the loan they have takes charges from the person. The interest on the loan is given by the amount written on it. There are some private as well as government banks are being there who provides loan to a customer. And they have to return the amount within a given period.
Hence, option (c) is the correct answer.
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What are some problems with eating fish from higher trophic levels?
why have residents in mexico city been encouraged to use bicycles
The Earth’s ocean is a large body of water that is divided into __________ parts. A. two B. four C. eight D. ten
The ocean of the earth is divided into four parts. Thus, option (B) is correct.
What is Earth?Earth is one of the eight planet in the solar system and is the part of Milky Way galaxy. It is a unique planet because life exist. It has various species and plants which makes the life possible in the planet. The structure of the earth include two very important areas, one is ocean and the other one is landmasses.
Ocean refers to the large water bodies which are the habitat of millions of aquatic plants and animals. The ocean of the earth is divided into four parts namely Atlantic, Arctic, Indian, and Pacific Oceans.
Some nations, like the United States, began to recognize the Southern Ocean as the fifth, though it is still not typically regarded one of the primary ones.
Therefore, it can be concluded that option (B) is correct.
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What powers the surface currents of the ocean?
True or false Costa Rica is land is protected by one of the most ambitious conservation programs in Central America
Why can diamonds form in the mantle?
a.the weight of the rocks above the mantle results in high pressure.
b.the weight of the rocks in the outer core results in high pressure.
c.the weight of the rocks in the outer core increases the temperature.
d.the sun and moon cause a low pressure in the upper mantle?
True or false an area of high flat land is a plateau
What are the advantages of wind power?
always available
can use anywhere
free after equipment is built
non-polluting energy source
useful in remote areas
You can choose more than one
Answer:
free after equipment is built
non-polluting energy source
useful in remote areas
What are the three main factors that determine earth's climate zone?
The influence of carbon dioxide on the climate is mainly due to its ability to absorb ________.
The influence of carbon dioxide on the climate is mainly due to its ability to absorb heat emitted from our planet's surface, keeping it from escaping out to space. The unique property of carbon dioxide in absorbing infrared radiation is what makes it a crucial greenhouse gas impacting global warming and climate change.
Which line represents 0° latitude?
A. the prime meridian
B. the equator
C. the international date line
D. the Tropic of Capricorn
Answer:
The equator B.
Explanation:
Which segments/lines are parallel. JUSTIFY your answer
The study of governments and their boundaries is called __________. A. sovereign geography B. regional geography C. political geography D. territorial geography
The correct answer for above statement is:
C. political geographyExplanation:Political geography is disturbed with the investigation of both the spatially irregular issues of political manners and the ways in which political manners are themselves influenced by spatial compositions.
What is the coastal zone of wetlands where salt water and fresh water mix called?
What was "manifest destiny"? Question 12 options: Mexican belief that it was meant to be independent from Spain doctrine that the US had the right and duty to expand throughout North America Canadian doctrine that supported elimination of most Native American tribes American belief in the natural goodness of all colonists
Final answer:
Manifest Destiny was the 19th-century belief that the US was destined to expand across North America, a doctrine that gained momentum in the 1840s leading to the annexation of territories like Texas and California.
Explanation:
The term "Manifest Destiny" referred to the widely held 19th-century belief and doctrine that it was the destiny and duty of the United States to expand its territory across North America. Proponents argued that this expansion was preordained, just, and reflected a mission to spread democracy and freedom "from sea to shining sea". The movement for expansion gained significant momentum in the 1840s, incorporating regions such as Texas and Oregon into the Union. It was also a leading cause of the war with Mexico, leading to the acquisition of territories like California. During this process, Americanization of the local inhabitants, including Native American tribes and Mexicans, was considered a natural progression, often overlooking the complex realities of the existing societies and the means through which territories were acquired.
Describe how you plan to construct your geologic column for the grand canyon canyon.
Constructing a geologic column for the Grand Canyon involves studying and documenting each layer of rock from the bottom to the top of the canyon, noting the type of rock and any fossils. This process represents time, with each layer equating to a specific geologic era.
Explanation:To construct your geologic column for the Grand Canyon, you would need to start by comprehensively studying and documenting the different rock layers. The Grand Canyon's geologic column is unique and vast, comparable in size to a canyon system stretching from Los Angeles to Washington, DC.
Begin at the bottom of the canyon, with the oldest rock layers – the Vishnu Basement Rocks, and gradually move upward through each distinct strata, noting the type of rocks and any visible fossils. This can include the Supai Group, Redwall Limestone, or the igneous and metamorphic rocks found in areas such as the Zoroaster Granite.
The final step would be to compile your findings into a detailed report, effectively producing your geologic column. Do remember that the process of constructing a geologic column is a representation of time, with each layer equating to a specific geologic era.
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how did the mariachi style music originate?
A. indigenous tribes of Mexico
B. the criollos of the 19th century
C. from a festival in honor of a virgin known as Maria H
D. its origins are uncertain
the correct answer is a
Answer
Is "its origins is uncertain" just took test
Explanation:
Canada's oil deposits are mostly located in:
What causes the northern and southern halves of the planet to experience winter and summer at opposite times?A) the tilt of Earth B) Earth’s daily rotation C) the gravitational pull of the moon D) the distance of Earth from the sun
Answer:
a. the tilt of the earth
Explanation:
The Northern and Southern Hemisphere experience different seasons at opposite times because of the tilt of the Earth's axis.
The tilt of Earth causes the northern and southern halves of the planet to experience winter and summer at opposite times. The correct option is A.
What are the northern and southern halves of the Earth called?The hemispheres, which are formed when a circle is traced around the Earth, are equally sized. Generally speaking, there are four hemispheres: the northern, southern, eastern, and western. The Northern and Southern Hemispheres of the Earth are separated by the Equator, sometimes known as the line of 0 degrees latitude.
The tilt of Earth's axis causes the northern and southern hemispheres to be oriented towards or away from the sun at different angles throughout the year. This causes the amount of sunlight and heat received by each hemisphere to vary, resulting in the opposite seasons.
When the northern hemisphere is tilted towards the sun, it experiences summer, while the southern hemisphere is tilted away from the sun and experiences winter. When the northern hemisphere is tilted away from the sun, it experiences winter, while the southern hemisphere is tilted towards the sun and experiences summer.
Thus, the ideal selection is option A.
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Which of the following features was not created by subduction ?? Plz help
1.Andes
2.Alps
3.Mariana Trench
4.Japan
The answer is:
2.Alps
The explanation:
- Alps's mountain chains was the only one which not created by subduction, because Alps formed by collision. The collision is a geologic process in which two plates collide each other, in our example(Alps formation) the Africa tectonic plates collide with the Eurasian tectonic plates and uplift the crust of the earth forming the mountain chains.
- but the subduction is a geologic process happened in the regions called subduction zone when one tectonic plate is go under another tectonic plate.
So Alps wasn't created by subduction , but formed by collision.
Answer:
the answer is 2. Alps
Good luck!
in what accent civilization did hinduism buddhism and jainism start in?