Question

Answer in brief:
Write a brief note on the various spheres
of the Earth
Mention the layers of the interior of the
Earth
Define Plate tectonics.
What is Tsunami?
$2$
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Answer 1

1. Earth's Spheres. Everything in Earth's system can be placed into one of four major subsystems: land, water, living things, or air. These four subsystems are called "spheres." Specifically, they are the "lithosphere" (land), "hydrosphere" (water), "biosphere" (living things), and "atmosphere" (air).

2. Earth's interior is generally divided into three major layers: the crust, the mantle, and the core.

3. the movements of the large sheets of rock (plates) that form the earth’s surface; the scientific study of these movements

4. a very large wave in the sea which destroys things when it reaches the land, and is often caused by movements under the surface of the earth (an earthquake).

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