241. The smallest planet:
(a) Earth (b)
Venus
(c) Mars (d) Mercury
Answers: (d)
242. The planets without satellite are Mercury and .......
(a) Mars (b)
Earth
(c) Venus (d)
Neptune
Answers: (c)
243. The nearest planet to Sun:
(a) Venus (b)
Earth
(c) Mercury (d)
Mars
Answers: (c)
244. The nearest planet to Earth:
(a) Mars (b)
Mercury
(c) Jupiter (d)
Venus
Answers: (d)
245. The hottest planet:
(a) Earth (b)
Venus
(c) Mercury
(d) Mars
Answers: (b)
246. Which planet is experienced the highest temperature variation?
(a) Earth (b)
Venus
(c) Mars (d)
Mercury
Answers: (d)
247. Which planet has the lowest escape velosity?
(a) Jupiter (b)
Earth
(c) Mercury (d) Venus
Answers: (c)
248. Which planet has the highest escape velosity?
(a) Saturn (b)
Jupiter
(c) Earth
(d) Neptune
Answers: (b)
249. NASA sent Messenger in 2004 to study about:
(a) Mars (b)
Mercury
(c) Venus (d)
Jupiter
Answers: (b)
250. The messenger in Roman mythology:
(a) Venus
(b) Mars
(c) Jupiter (d)
Mercury
Answers: (d)
251. The Greek equivalent of Mercury:
(a) Poseidon (b)
Zeus
(c) Hermes (d)
Aphrodite
Answers: (c)
252. The time taken by Mercury to complete one
revolution is ....... earth days:
(a) 88 (b)
58
(c) 49 (d)
225
Answers: (a)
253. Which planet is known as ‘morning star’?
(a) Neptune (b)
Jupiter
(c) Venus (d)
Mars
Answers: (c)
254. Which planet has the most circular orbit?
(a) Earth (b)
Venus
(c) Mars
(d) Mercury
Answers: (b)
255. Which planet has the least circular orbit?
(a) Mercury (b) Uranus
(c) Saturn (d)
Jupiter
Answers: (a)
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