Question

Write a short note on three layers of earth?

Answer 1

Answer:

The three layers of earth are

a.CORE

• It includes both inner and outer core.
• Core is the inner and hottest layer of the earth.
• The outer core is composed of metals such as Iron and Nickel.

• The outer core surrounds the inner core.

b.MANTLE

• It is the middle layer of the Earth.
• It is the widest section of the earth.
• Mantle is made up of semi-molten rocks called Magma.
• The mantle consists of very hot and dense rock.

c.CRUST

• Crust is the outer most layer of the earth.
• It is divided into two types.
• The thickness is around 0-60 Km.

HOPE THIS IS HELPFULL.

Answer 2

Answer:

The internal structure of Earth is layered in spherical shells: an outer silicate solid crust, a highly viscous asthenosphere and mantle, a liquid outer core that is much less viscous than the mantle, and a solid inner core. Scientific understanding of the internal structure of Earth is based on observations of topography and bathymetry, observations of rock in outcrop, samples brought to the surface from greater depths by volcanoes or volcanic activity, analysis of the seismic waves that pass through Earth, measurements of the gravitational and magnetic fields of Earth, and experiments with crystalline solids at pressures and temperatures characteristic of Earth's deep interior.

Explanation:

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