Answer:
Mantle convection is the very slow creeping motion of Earth's solid silicate mantle caused by convection currents carrying heat from the interior to the planet's surface. [1] [2] The Earth's surface lithosphere rides atop the asthenosphere and the two form the components of the upper mantle .
Explanation:
The mantle is heated from below (by the core), and in hotter parts, it rises (is buoyant), whereas in colder areas, it sinks.Convection cells are created as a result, which causes mantle material to move horizontally near the Earth's surface.
Mantle convection occurs for what reason?
Because relatively hot rocks are less dense and rise in a gravitational field while relatively cold rocks are denser and sink, mantle convection happens.When hot rocks rise, heat is advected upward, and when cold rocks fall, cold is advected downward; this counter flow is the same as an upward heat flux. Several tectonic plates that make up the lithosphere are continuously being generated or eaten at plate borders.As mantle is added to a plate's expanding boundaries, which is related to the spreading of the seafloor, accretion takes place.The rising element of mantle convection is up welling beneath the spreading centers. When highly heated particles in a liquid or gas move and replace less heated particles, convection takes place.Convection is the process through which heat energy is moved from heated areas to colder ones.When heated, gases and liquids both expand .A convection cell cannot form without a heat source.The heat source warms the fluid, which is then pushed away.The fluid inevitably cools after starting to lose heat.The flow of newly heated matter drives this colder, denser matter back toward the initial heat source. Convection, a thermally driven process whereby deep heating causes material to expand and become less dense, leading it to rise while being replaced by complementary cool material that sinks, is the primary method of heat transport in the Earth's mantle. Any fluid, including boiling water, soup (where the cells may be recognized by the particles they transport, like as rice grains), the ocean, or the surface of the Sun, can produce convection cells, also known as Hadley cells. Convection causes the water at the bottom to expand and become lighter when water is heated.The cooler molecules then sink to the bottom as the heated ones rise to the top.Then, these colder molecules warm up. Convection is the process of warm fluid continuously rising above cold fluid.For instance, if you heat a bucket of water and dip your hand into it before removing half of it, the other hand will indicate that the water is chilly.Convection is the cause of this .The difference in temperature between the two fluid components allows the heat energy to be transported by convection.Hot fluids have a tendency to ascend while cold fluids have a tendency to sink due to this temperature differential.Convection current is produced as a result within the fluid. These currents receive their heat from both the mantle and the Earth's core.Mantle material rises slowly through the asthenosphere in the form of hot columns.The hot material expands out and pushes the colder stuff out of the way near the top of the asthenosphere. The commonly accepted, oversimplified theory for why tectonic plates move is that they are propelled by currents in the upper mantle, the slowly flowing layer of rock just beneath the Earth's crust.Colliding currents cause plates to collide.Currents that diverge pull them apart. Mantle convection is the term used to explain how the mantle moves when heat is transferred from the blazing core to the brittle lithosphere.The mantle's temperature gradually drops over extended periods of time as a result of below- and above-surface heating and cooling.To learn more about mantle convection refer
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Which of the following statements about the World Bank is false?
A.
The World Bank accepts deposits and makes loans for corporations, countries, and individuals around the world.
B.
The World Bank is owned and operated by its members.
C.
The World Bank's original purpose was to help with the rebuilding effort in Europe following World War II.
D.
The World Bank's current mission is to reduce poverty around the world.
Answer:
A : the world bank accepts deposits and makes loans for corporations, countries, and individuals around the world
Explanation:
the answer for edg 2021
Among the following statements the false sentence about the World Bank is the World Bank accepts deposits and makes loans for corporations, countries, and individuals around the world.
What is World Bank?For the aim of pursuing capital projects, the governments of low- and middle-income countries can apply for loans and grants from the World Bank, an international financial institution.
Although the World Bank technically belongs to the United Nations, its governance structure is distinct. Each institution in the World Bank Group is owned by the countries that make up its membership, who also contribute to its basic share capital and have voting rights based on share ownership.
Therefore World Bank assist developing nations in achieving sustainable growth by facilitating investment, attracting resources to global financial systems, and offering guidance to organizations and governments.
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Exponential population growth occurs when new farming techniques, or new crops and fertilizers, arrive on the farming scene, while at other times growth is relatively steady. True or False
Answer: True
Explanation:
When there are new farming techniques or biotechnology sees the introduction of new crops and fertilizers that can yield more feed, the population has a very good chance of exponential growth.
We saw this in Britain during the Agricultural Revolution of the 17th and 18th century when Britain introduced new farming methods that increased yields leading to an exponential population growth rate. The same was the case millennia ago when humans started farming the first time.
It's understandable that scientists know the most about the crust, and less about deeper layers? Why
Answer:
It is easier to study the crust because it is easier to access it.
Explanation:
Answer:
bcause there are new life or nonliving forms decomposing and rocks are formed
Explanation:
as opposed to knowin' lava 'nd mlten rock is underneath
true or false- The Egyptians downfall was their poor structure of governing ideas.
Answer: false
Explanation:
There are 25 students in Laura’s class, and 21 of the students went on the class trip to the zoo. What percent of students went on the class trip?
Answer:
84%
Explanation:
Also please remember to chose the right subject your question belongs in!
Answer:
84 percent
Explanation:
it leaves four percent
How have human systems and political systems shaped Northwestern Europe?
Answer:
The human systems and political systems in Northwestern Europe is really diverse, By permitting many folks to talk quite one language, many ladies were allowed to vote, and creative movements like Romanticism, Realism, and Impressionism began in Northwestern Europe.
hope it helps!
1 biologists believes that the dinosaurs were destroyed by floods one astronomer believes that comets and meteorites which struck Earth made dinosaurs extinct which of these statements best explains why the biologists and astronomer have different views about dinosaurs a scientific views are influenced by the scientists background be data gives different results when tested at different periods of time see that is so sad with natural phenomena or change from time to time or D sign says working with different sets of data arrive at different
Answer:
B. Data gives different results when tested at different periods of time.
Explanation:
I think this is the right answer but if I'm wrong than I'm sorry. Your wording was confusing. Hope this help! :)
True or false?
The economies of these early civilizations were based on hunting and gathering.
Answer:
False
Explanation:
The awnser is false sorry if it's wrong
helppppppppp i need this fast!!!!!
How does Africa’s rain forest differ from the savanna?
A.) The rain forest has more grassland, and the savanna has more trees.
B.) The rain forest has fewer water sources, and the savanna has oases.
C.) The rain forest has few animal species, and the savanna has many animals.
D.) The rain forest has more annual rainfall, and the savanna has heavy summer rainfall.
Answer: It should be B.
Explanation:
which of these Rock appeared first on the surface of the earth
Answer: Sedimentary Rocks
Explanation: i think we all know
ASAP HELP!!!!! For earth science
What is the phase of a star called where it simply cools and fades away?
Answer:
White dwarf
Explanation:
4. Which of the following cities would most likely experience the warmest
summer?
a. Miami, Florida
b. Houston, Texas
c. Quito, Ecuador
d. Manaus, Brazil
which of the following is a cold current?
a} gulf stream
b} Brazil current
c} monsoon drift
d} Peru current
Answer:
d} Peru current
Explanation:
Peru Current is a cold-water current found in southeast Pacific Ocean.
Peru Current is a type of cold current as it brings fog to the nearby coast. but Though it carry god and cold current but it keeps the coasts most intensely arid areas in the world.
Hence, the correct answer is "d} Peru current".
the distinction between the lithosphere and the asthenosphere is primarily on the basis of a difference in ________.
Answer:
The difference between the lithosphere and asthenosphere is how the materials in these layers can flow.
Explanation:
The difference between the lithosphere and asthenosphere is how the materials in these layers can flow.
Rocks in the lithosphere can bend but they cannot flow. Rocks in the asthenosphere can flow, like toothpaste, in response to deformation.
What Gives a planet day and night or a year
Answer:
when you get in a pool
Explanation:
im just too good
Answer:
Due to revolution and rotation
Explanation:
Hope this may help you
2. What happens to the average temperature of an area as you get further from
the equator?
Answer:
Temperatures decrease as you move away :D
Explanation:
Temperature range increases with distance from the equator. Also, temperatures decrease as you move away from the equator. This is because the sun's rays are dispersed over a larger area of land as you move away from the equator.
Analyze the map below and answer the question that follows.
A satellite map of India. An island of the southern coast of India is circled.
Image courtesy of NASA
Which nation is circled on the map above?
A.
India
B.
Pakistan
C.
Sri Lanka
D.
Bangladesh
Please select the best answer from the choices provided
A
B
C
D
Answer:
India I had the same question
Explanation:
PLSSS HURRY WILL GIVE BRAINLIEST AND 30 POINTS
Describe the landscape of China. (Site 1)
Which of the following correctly completes this graphic organizer?
Answer:
President Jackson ignores a Supreme Court ruling.
Explanation:
The following correctly completes this graphic organizer: President Andrew Jackson ignores a supreme court ruling. Thus option (B) is correct.
What is Supreme court?The Supreme court is the highest court of appeal in the nation. It is the highest tribunal in the nation for all cases and controversies which arises from the Constitution of the country or the laws of the nation.
The Supreme court has the responsibility of ensuring people the promise of giving equal justice under the law. The Supreme court acts as the guardian and final interpreter of the Constitution when any complications comes. It is the final arbiter of the law.
The following correctly completes this graphic organizer: President Andrew Jackson ignores a supreme court ruling. Therefore, option (B) is correct.
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Pls pls pls help me "True or False”
can you help me with this question
Answer:
G
Explanation:
Since the passage was discursive, and the main topic being migration, G would be the best answer because it gives the reason why Tibetians are migrating, which is the Chinese invasion
what is 20% of a 400-liter tank?
Answer:
We know that 20% of 400 liters is 80 liters.
so 20 is 5 divided by 100 so divided 400 by 5 and its 80
PLEASE ANSWERRRRRRRRRRRR NEED HELP ASAPP
If you cant see it , it says
1. Describe the different layers or horizons of soil and identify the living components of each layer.
2. Describe the relationship between plant type and soil compatibility and explain the characteristics considered for plants to grow.
Answer:
1.Soils are named and classified based on their horizons. The soil profile has four distinct layers: 1) O horizon; 2) A horizon; 3) B horizon, or subsoil; and 4) C horizon, or soil base ((Figure)). The O horizon has freshly decomposing organic matter—humus—at its surface, with decomposed vegetation at its base.
2.Twenty elements are considered essential for plant growth because they are involved in metabolic functions required in the life cycle of the plant. Some, like carbon (C), oxygen (O), and hydrogen (H), can come from the air. Nitrogen (N) is made available to the plant from the air and soil. But most of the needed elements that are nutrients for plants come from the soil. They are not all equally important but all play a role in plant growth. Most needed are nitrogen (N), phosphorus (P), potassium (K), and sulphur (S). The others are calcium (Ca), iron (Fe), magnesium (Mg), manganese (Mn), zinc (Zn), copper (Cu), boron (B), molybdenum (Mo), chlorine (Cl), sodium (Na), cobalt (Co), nickel (Ni), and silicon (Si). They will be discussed in the next objective.
Explanation:
Imagine that you're a city planner, and you are interested in helping to build more parks for your citizens. You have two things to help you: i. You have data that shows you where most people live in your city i. You have maps that show you where your city's parkS are right now. How could GIS help you if you were in bis situation? Explain your answer in a short paragraph.
Can someone help me with this please
Answer:
B, none of the others make sense
Explanation:
Answer:
B
Explanation:
its simple really and nothing else makes sense
The longitude of the prime meridian is
Answer:
The prime meridian is at the longitude 0. It is the base for all the rest of the longitudes, running through Greenwich, England.
4 The line segment on the map below is 1.6 cm long, and the map scale is 1 cm = 0.5 km. What is the gradient of the slope marked by the line?
A. 600 m/km
B. 1,333 m/km
C. 750 m/km
D 500 m/km
Answer:
750 m/km
Explanation:
If the map scale is 1 cm = 0.5 km, then a 1.6 cm line will represent 0.8 km. The elevation change is 900 - 300 = 600 meters. The gradient is the elevation change divided by the distance, so 600 m/0.8 km = 750 m/km.
Vividly explain what is fahrenheint and centious in geography
Why was size one of the causes of the American Revolution?
OOO
Size was not one of the causes.
A continent was trying to rule an island.
It was hard for people to move around.
O An island was trying to rule a continent.
because of something that god knows
can somebody help
Plz ans ASAP
evaluate to what extent Kenya can be developed.
Answer:
The Economy of Kenya is a market-based economy with a liberalised external trade system ... Small-scale consumer goods (plastic, furniture, batteries, textiles, clothing, ... Compared to its neighbors, Kenya has a well-developed social and physical ... A significant portion of this can be traced to fraudulent asset transfers
Explanation:
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