Question

IV. Answer the following questions.
1. Write briefly about each of the three layers of
the Earth. Illustrate your answer with suitable
diagrams.​

Answer 1

Answer:

three layers of earth are- core, mentle and crust.

core- it is a innermost layer of earth .

mentle- it is a middlemost layer of earth.

crust- it is outermost layer of earth.

Answer 2

Answer:

Our Earth consists of four different layers namely:

*Inner core

*Outer core

*Mantle

*Crust

➡️Inner Core:

It is the center and the hottest layer of the Earth. The inner core is solid and made up of iron and nickel with temperature up to 5,500oC.

➡️ Outer Core:

The outer core of the Earth is similar to a very hot ball of metals, whose temperature is around 4000 oF to 9000oF.

➡️Mantle:

Mantle is the widest section of the Earth. Its thickness is approximately 2,900 km. Mantle is mainly made up of semi-molten rock known as magma.

Crust:

➡️The crust is the outer layer where we live. The thickness is around 0-60 km. It’s a solid rock layer divided into two types:

1)Continental crust covers the land and,

2) Oceanic crust covers water.

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