Q60 of 112 Page 336

What is a satellite? Name the natural satellite of the Earth.

Any celestial body revolving around another celestial body is called its satellite. The Earth is the satellite of the Sun because it revolves around the Sun. The bodies revolving around the planets are considered as satellites of the planet. Moon is the natural satellite of Earth.


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58

What are the various environmental conditions available on Earth which are responsible for the existence and continuation of life on Earth?

 59

State one important consequence of each of the following:

(a) Rotation of Earth on its axis.


(b) Motion of tilted Earth around the Sun.

 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