1. All the planets move around the sun in fixed elliptical path, these paths are called

2. Why is the shape of the earth geoid?

3. The earth is called a unique planet due to

4. The earth is called a blue planet because of the presence of

5. Why do we see only one side of the moon from the earth?

6. Why does the moon not have conditions favourable for life?

7. Apart from stars, planets and satellites, there are numerous bodies which also move around the sun, what are these called?

8. Asteroids are found between the orbits of Jupiter and

9. Meteoroids are made up of

10. What is called a cluster of millions of stars, shining white in the starry sky?