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STARS AND THE SOLAR SYSTEM 2, , , , B. SHORT ANSWER TYPE QUESTIONS, , Q. 1. What are celestial bodies ? Name some of them., , Ans. A celestial body is any natural body outside the earth’s, atmosphere., , The stars, the moon, and many other objects in the sky are all, examples of celestial bodies., , Q. 2. What are terrestrial planets ? Name them., , Ans. Mercury, Venus, Earth and Mars are called terrestrial planets., These planets have solid rocky surface., , Q. 3. What happens to the tail of a comet when it, approaches the Sun ?, , Ans. The tail of a comet is made up of mainly dust and gases. The, length of tail grows in size as it approaches the sun. This is because the, sun's rays make the gases in tail grow which then spread to form a tail, millions of kilometres long., , Q. 4. Name a planet that is, , (a) hottest (b) coldest (c) smallest, (d) windiest (e) biggest and fastest, Ans. (a) Venus (b) Neptune (c) Mercury (d) Neptune (e) Jupiter, , C. LONG ANSWER TYPE QUESTIONS, , Q. 1. Give an account of phases of the Moon., , Ans. The day-to-day changes in the size and shape of the Moon as, seen from the Earth are called phases of the Moon. On a full Moon day,, we can see the whole disc of the Moon.