What are the rings around some planets? Give some examples.

3

(a)

Why can't we see stars during day time.

3

(a)

Do you think that artificial satellites are important?

3

(a)

Why is the sun called as the head of the solar system?

3

(a)

Why is Mercury the hottest planet in the Solar System?

3

(a)

Differentiate between planet and satellite

3

(a)

Distinguish between Comet and Asteroid

3

(a)

Describe the Universe.

3

(a)

Write a note on 2003UB₃₁₃ or Eris.

3

(a)

The shooting stars are not actually stars. Discuss

3

(a)

Distinguish between Star and Satellite.

3

(a)

Stars twinkle but planets do not. Why?

3

(a)

Why doesn't the Moon fall down?

3

(a)

Why do meteor showers fall during predictable periods each year?

3

(a)

Read the following passage and answer the questions given below:
The Sun, the eight planets, the satellites and the other celestial bodies, such as asteroids and meteoroids form the solar system. It is a huge star made up of extremely hot gases. It provides the pulling force that binds the solar system. It is also the ultimate source of heat and light for the solar system. At present pluto is considered as a dwarf planet.
(i) What is the importance of Sun in the Solar System?
(ii) Name the dwarf planets of solar system.

3

(a)