Question

1 Answer the
1. What do you know about our Earth? Write a short note.
2. How much time was taken by the Earth to reach its present form after being
detached from the Sun? Why?
3. How are the spheres of Earth inter-related?
riate words​

Answer 1

Answer:

Ans 1 = It is the third planet from the Sun. It is the only planet known to have life on it. ... Earth is the only planet in our solar system that has a large amount of liquid water. About 74% of the surface of Earth is covered by liquid or frozen water.

Surface area: : 510072000 km2 (196940000 sq mi); 148940000 km2 land (57510000 ...

Surface gravity: 9.807 m/s2 (1 g; 32.18 ft/s2)

Composition by volume: 78.08% nitrogen (N; 2; dry air); 20.95% oxygen (O; 2); 0.93...

Surface pressure: 101.325 kPa (at MSL)

Ans 2 = Most of the planets in our solar system including earth were formed by detaching form sun nearly 4.5 billion years ago. Explanation: Most of the planets in our solar system including earth were formed by detaching form sun nearly 4.5 billion years ago.

Ans 3 = These spheres are closely connected. For example, many birds (biosphere) fly through the air (atmosphere), while water (hydrosphere) often flows through the soil (lithosphere). In fact, the spheres are so closely connected that a change in one sphere often results in a change in one or more of the other spheres.

Explanation:

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