Q63 of 112 Page 336

What are asteroids? Where are they located?

There is a large gap in between the orbits of Mars and Jupiter. This gap is occupied by a large number of small objects that revolve around the Sun. These are called asteroids. Asteroids are the celestial objects which are also called minor planets. Asteroids can only be seen through large telescopes.


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61

Moon does not have light of its own. How are we able to see the Moon?

 62

Name the constellation which appears to have the shape of:

(a) a big bear


(b) a distorted W or M


(c) a hunter


(d) a big lion

 64

State two differences between the artificial satellites of the Earth and its natural satellite Moon.

 65

What is an artificial satellite? Name any two artificial satellites launched by our country.