Question

Write in brief about the earth's lithosphere and hydro sphere

Answer 1

Answer:

The lithosphere is the upper rigid shell of the earth and is distinctly sub-divided into three layers. They are: the central one, or the core; the intermediate layer called the mantle; and the outer layer known as the earth’s crust.

The hydrosphere, or water sphere, mostly covers the depressions of the lithosphere. Some amount of water is also found in the rocks and much exists in the form of water vapour in the atmosphere. The oceans represent about 71 per cent of the globe and therefore contain the great bulk of the water. The average depth of the oceans is about 3,800 m.

The total volume of the world oceans is about 1-4 billion cu. km. which comprises more than 97 per cent of the world’s free water. Of the remaining 3 per cent, about 2 per cent is locked up in the ice sheets of Arctic and Antarctica and about 1 per cent is being represented by fresh water of the lands.

Explanation:

Answer 2

Answer:

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Explanation:

The lithosphere is the solid, outer part of the Earth. The lithosphere includes the brittle upper portion of the mantle and the crust, the outermost layers of Earth's structure. It is bounded by the atmosphere above and the asthenosphere (another part of the upper mantle) below.

A hydrosphere is the total amount of water on a planet. ... A planet's hydrosphere can be liquid, vapor, or ice. On Earth, liquid water exists on the surface in the form of oceans, lakes and rivers. It also exists below ground—as groundwater, in wells and aquifers.