Briefly describe the characteristics of the four main layers of Earth. Include temperatures.

Answers

Answer 1

Answer:

Crust

The crust is the first layer of the earth. It is split up into two parts the continental crust, and the oceanic crust. The oceanic crust takes up 71% of the earths crust, and the other 29% of the crust is continental. The continental is made up of igneous rocks, and the oceanic crust is made up of sedimentary and basalt rocks. The continental crust is older than the oceanic crust, some of the rocks are 3.9 billion years old. The density average of the oceanic crust is 3g/cm. The average density of the continental earth is 2.7g/cm. The temperature of the crust is around 200-400 degrees celsius. The crust is about 60 km thick under a continent and 5 km thick under the ocean. The crust is constantly moving.  The crust doesn't even make up 1% of the earth!  The crust is the layer were tectonic plates can be found.

Mantle

The mantle is the second layer of the earth. It is split up into two different parts, the lithosphere (which is the top part) and the asthenosphere (which is the bottom part). The lithosphere is a dense rock made out of iron and nickel, the asthenosphere is a plastic like fluid. The temperature of the lithosphere is around 300 to 500 degrees celsius, and the asthenosphere is around 4500 degrees celsius. The mantle has the biggest volume of all the layers, the volume of it is 84% of the earth. It is 1,800 miles deep or 2,900 kilometers deep. In the mantle are convection currents which make the mantle move. The lower mantle heats up and rises and cools down then gets pushed down because it is heavier. Then I keeps going on like that. The mantle grows a meter a year.

Lithosphere

The lithosphere is the top layer of the mantle. The lithosphere includes having the crust in it. It is a cooler layer because it is farther from the inner core. The lithosphere is a dense rock made out of iron and nickel. The temperature of the lithosphere is 300-500 degrees celsius. Inside the lithosphere and asthenosphere are currents, called convection currents. They make the lithosphere and asthenosphere turn round and round. So because the lithosphere is denser it is being forced down closer to the core and then heats up then forces its way back up to the top because it is less dense.

Asthenosphere

The asthenosphere is the bottom layer of the mantle. It is a plastic like liquid made up of iron and nickel. The temperature of the asthenospere is 4500 degrees celsius. It is hotter than the lithosphere because it is closer to the inner core. Inside the asthenosphere and lithosphere are currents, they are called convection currents. So because the asthenosphere is less dense or lighter than the lithosphere is forces its way up to the top and foces the lithosphere down. It then cools down then gets forced back down by a hotter substance

Convection Currents

Convection Currents happen in the Mantle. They go through bot the lithosphere and the asthenosphere. They make them move round and round. Since the asthenosphere is hotter, that makes it lighter or less dense, so it forces its way to the top. Meanwhile it is forcing the lithosphere to go down and take it's place, So the asthenosphere that moved up and cooled down, and the lithosphere that got forced down is heating up and then when it gets hot ebough it will force its way to the top and the whole cycle will start again. But these convection currents effect the earth and the tectonic plates. Because when the plates, say...... overlap one gets pushed under the other, and it would get pushed don to the convection currents, and because it is a dense material it would be forced down and it would melt and make a new crust. In the photo below that diagram would acctually be going on inside of the earth at this very moment!

Outer core

The outer core is a liquid made up of iron and nickel. The temperature of the outer core is around 4400 degrees celsius. The depth of the outer core is 2, 890. This is one of the three layers that is putting pressure on the inner core. It is the second hottest layer, because it is the layer above the inner core, and it is the second farthest from the surface of the earth. Also it is said that the core is rotating faster than the rest of the earth but...... slower than previously believed! the outer core was discovered in 1936 by seismologist, Inge Lehmann.

Inner core

The Inner crust is the second thinnest layer. The inner core is hotter than the surface of the sun. The inner core is made out of iron and nickel. It is 5159 to 6378 km thick. The inner core is extremely hot and is the last layer. The inner core is 5505 degrees celsius. It is a solid because of all the pressure from the other layers putting there weight onto this layer. The inner core grows. The core was discovered in 1971..

Explanation:


Related Questions

If a nonrenewable
resource cannot be returned to the source how can people use it in the future?

Answers

Answer:

recycle

Explanation:

I'm sure in the near future, we will be able to find ways to reuse objects that we couldn't before, especially as the world advances.

Answer:

They can't

Explanation:

The difference between these two types of resources is that renewable resources can naturally replenish themselves while nonrenewable resources cannot. This means that nonrenewable resources are limited in supply and cannot be used sustainably.

Which of the following possibilities will form a triangle? (1 point)


Side = 10 cm, side = 5 cm, side = 6 cm

Side = 10 cm, side = 6 cm, side = 3 cm

Side = 11 cm, side = 5 cm, side = 6 cm

Side = 11 cm, side = 5 cm, side = 5 cm

Answers

Answer:

Side = 10 cm, side = 5 cm, side = 6 cm

Explanation:

Triangle is made up of three line segment. Three line segment can form a triangle only when sum of two small line segment is more than the third line segment.

a. Side = 10 cm, side = 5 cm, side = 6 cm

5 cm + 6 cm  = 11 cm > 10cm

In the first option, the sum of two small sides is more than the third size, hence it will form a triangle.

Other options do not fulfil the same criteria, so they will not form a triangle.

Hence, the correct answer is "Side = 10 cm, side = 5 cm, side = 6 cm".

Which of the following are the correct properties of slope?
Check all that apply.
A. Lines that go down from left to right should have a negative
slope.
O B. Lines that go up from left to right should have a positive slope.
C. The slope of a steep line with a positive slope should be smaller
than the slope of a flat line.
D. Lines that have positive slopes and are equally steep should have
the same slope.
E. The slope of a steep line with a positive slope should be bigger
than the slope of a flat line.

Answers

Answer:

A, B, D, E

Explanation:

Out of the aforelisted options, 4 out of 5 are correct. And like the question had stated, mentioning all that are correct. They are:

Lines that go down from left to right should have a negative

slope.

Lines that go up from left to right should have a positive slope.

Lines that have positive slopes and are equally steep should have

the same slope.

The slope of a steep line with a positive slope should be bigger

than the slope of a flat line.

The correct properties of slope are;

Lines that go down from left to right should have a negative slope.Lines that go up from left to right should have a positive slope. Lines that have positive slopes and are equally steep should have the same slope.The slope of a steep line with a positive slope should be bigger than the slope of a flat line.

According to the question, we are to discuss about slope and its property. As a result of this we can see that Lines that have positive slopes and are equally steep should have the same slope.

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What is the Process of Weathering? (Explain in your words?)

Answers

the process of weathering is a rock being worn/broken down into little sediment.

Explanation:

Dubai is challenged by all of the following environmental factors except
A
B
C.
D. a lack of valuable natural resources
a warm and dry climate
a lack of annual rainfall
scarce freshwater resources
Please select thebest answer from the choices provided.
A
OB
C
OD

Answers

DDDDDDDDDDDDDDDDDDDDDDDDDD

Answer:

D. a lack of valuable natural resources

Explanation:

Which physical feature is in China?

a.) Mount Kaliash
b.) Taklamakan desert
c.) Mekong river​

Answers

Answer:

isn't it b.) Taklamakan desert

Explanation:

Answer:

all

Explanation:

because all present in china

define rock and minerals with examples

Answers

Answer:

A mineral is a pure substance with a specific composition and structure, while a rock is typically a mixture of several different minerals (although a few types of rock may include only one type of mineral). Examples of minerals are feldspar, quartz, mica, halite, calcite, and amphibole.

Explanation:

BRAINLIEST PLZZZZZ

the first person who gets this right gets a brain and 14 points and I can even do one of urs too

Answers

Answer:

Soo yh that's my answer

Explanation:

looked at some maps

7 points i guesss hope this helps u

What is B??? and am I right so far?

Answers

Answer:

d should be a fault and b should be underwater volcano i think

Explanation:

Help!!! il give brainlist​

Answers

Answer:

What do you need help with?

What are the major factors that influence climate. (LACEMOPS)

Answers

Answer:

Explanation:

Latitude. Ocean Current. Wind and Air Masses. Elevation. Relief. Nearness To Water.

Please give brainliest

You should not get up. You should not make dinner. You think you feel fine. You need to stay in bed. You are sick. You need to give your body a chance to get well. You will only get better with rest.

Answers

Answer:

Okay so this is perfect if any of you are sick I'm am Polish and in Poland when  you got sick you drank onion juice. Cut up onion, put it in a jar (you can add some sugar to it to make it taste better), close it until the onion relises the jucie, drink one spunfull of it a day good luck it worked for me every darn time

Explanation:

please help me please help me please help me please help me​

Answers

Answer:

D) ALL is the answer for this question

The ocean labeled 1 in the map that is located between California and Japan is called the
A)Arctic Ocean.
B)Indian Ocean
C)Pacific Ocean
D)Atlantic Ocean

Answers

The ocean between California and Japan is called Pacific Ocean

What is tidal locking in relation to the Moon and Earth?
A. The far side or "dark side" of the Moon is always in shadow making it impossible to see.

B. Tidal locking make the ocean tides on Earth produce two high tides and two low tides every 24 hours.

C. Tidal locking keeps the Moon in a synchronous orbit so we see only one side as it orbits Earth.

D. Tidal locking keeps Earth is a steady orbit around the Moon.

Answers

Explanation:

I think it is B. I'm not sure, God bless you

What is the strait that separates the Atlantic Ocean from the Mediterranean Sea?

A) Strait of Good Horn
B) Strait of Malachi
C) Strait of Gibraltar
D) Strait of Magellan

Answers

Answer:

Strait of Gibraltar, located in between Spain and Morocco.

Explanation:

I major in Geography

ANSWER NOW AND YOU GET a brain!!!

Answers

Answer:

Suez Canal, hope this helped <3

Explanation:

Why do scientists think Earth's core contains iron?

Answers

Scientists think Earth’s core contains iron because they have inferred that the core is iron by conducting seismic experiments. The magnetic field is also a strong clue.

Answer:

Iron is a heavy element and would sink into the planet.

Explanation:

What is the difference between an autonomous region and a semi-autonomous region?​

Answers

Explanation:

As adjectives the difference between semiautonomous and autonomous. is that semiautonomous is partially, but not fully, autonomous while autonomous is self-governing intelligent, sentient, self-aware, thinking, feeling, governing independently.

What is the average January temperature for most of South America?

Answers

Answer:High

°F Low °F City

68 46 Bogotá, Colombia

80 63 Brasília, Brazil

82 66 Bucaramanga, Colombia

86 67 Buenos Aires, Argentina

Explanation:

WILL MARK BRAINLYEST!!!!



Analyze the ancient world civilizations timeline above. At which year should the following event be placed?

The Olmec civilization emerged in Mesoamerica.
A.
2500 BCE
B.
1200 BCE
C.
100 BCE
D.
900 CE

Please select the best answer from the choices provided
A
B
C
D

Answers

Answer:

The answer is 1200 BCE

Explanation:

Answer:

b. region 2

Explanation:

ANSWER ASAP AND U GET A BRAIN, and 14

Answers

Answer: It's kuwait

Explanation:

I LOOKED AT A MAP

Use this picture to apply your knowledge of ecosystems and communities to compare and contrast the ecosystem and community in which an American black bear lives and interacts.

Answers

Bears, an important part of ecosystem, have their biome in places likes forests, mountains, tundra, deserts, and grasslands.

What kind of ecosystem does the bear live?

Bears are a small group of mostly large omnivorous mammals that live all over the world in forests, mountains, tundra, deserts, and grasslands. American black bears are only found in North America, while spectacled bears are only found in South America.

Asiatic black bears can be found throughout Asia. The sloth bear is also found in Asia, most notably in India, Nepal, Bhutan, and Sri Lanka, but it is thought to have vanished from Bangladesh. Polar bears and giant pandas are among the most endangered bear species. Polar bears can only be found in the icy lands of the Arctic, and pandas can only be found in the wet and cool bamboo forests of central Asia.

About their interaction in their biome, they are relatively quiet creatures but they will occasionally make sounds to communicate. They cubs bawl and moan when distressed, and suckling produces a grunting purr sound. The females communicate with their cubs by grunting or moaning in order to send them up trees for safety or to have them follow her.

Read more about bear biome

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Black bears are opportunistic omnivores, meaning they feed on a wide variety of plants and animals.

What are black bears about?

The American black bear (Ursus americanus) is found throughout North America, from Canada to Mexico, and from the Atlantic to the Pacific coasts. The species is found in a wide variety of habitats, including forests, mountains, and wetlands

In terms of ecosystem, black bears are opportunistic omnivores, meaning they feed on a wide variety of plants and animals. They primarily eat fruits, berries, nuts, insects, and other small animals such as rodents. They also consume fish and carrion when available. They play an important role as seed dispersers for many plant species and are also important for maintaining the health of many ecosystem by controlling the population of small mammals.

Black bears are solitary animals, and they do not form complex social groups like many other mammals. They primarily interact with other bears during the mating season, and otherwise they tend to avoid one another.

Learn more about ecosystem on:

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Describe two important industries in the United States what natural resources support these industries why are they natural resources important to the

Answers

Answer:

Iron industry and forestry.

Explanation:

The American industrialization began because of the abundance of raw materials, like iron, copper, coal, timber, and petroleum. The US was successful because they had raw materials, workers and businessmen to invest in industries. By mining, coal and iron ores supported the industries. Coal as fuel and iron for manufacturing goods. Forestry is a vital industry in the United States by producing lumber products.

On the map above, which shows the location of the White House, the coordinates give the building's __________ location.
A.
spatial
B.
absolute
C.
relative
D.
formal

Answers

Answer:

The answer is B. Absolute :)))

Explanation:

Stream Freak by doja cat

Answer:

On the map above, which shows the location of the White House, the coordinates give the building absolute location.

CAn some one help me ASAP

Answers

Answer:

Explanation:

No

Which temperature is typical of magma? 1000 degrees Celsius b. 5000 degrees Celsius 600 degrees Celsius d. 10,000 degrees Celsius Please select the best answer from the choices provided​

Answers

Answer:

1000 degrees Celsius

Explanation:

Magma can have temperatures around 1000 degrees to 1200 degrees Celsius

Ahimsa focuses on the unity of people throughout war. true or false? ​

Answers

Answer:

true

Explanation:

Ahimsa ( non violence) to not cause harm to another living being was a religion believe by the Jainism and others.

In a market economy, what determines for whom goods are produded?
OA. government and the market
OB. politicians and the bureaucracy
OC. supply and demand
OD.
custom and tradition
Reset
Submit

Answers

Answer:

In a market economy, the supply and demand determine for whom goods and produced.

Explanation:

There are multiple different economic types, all of which have experienced spikes and popularity, but some also decline. One of the economic types that seem to have been taking over the world since the past century and still continues to do so, is the market economy.

The market economy is an economic type where the businesses are privately owned, and the government only has a regulatory role so that laws are not broken and to protect the people. Also, the businesses have total freedom to decide what, how much, and in which manner to produce goods and where to supply them, and in what amount. The supply is directly dependent on the demand for a particular product in a particular area, so how much is demanded that much is supplied.

answer first, and u get 12 and I will answer some of urs

Answers

Answer:

the answer is choice d the last choice

ITS cairo, egypt. It’s located on the nile
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