(a) planets do not have light of their own whereas stars shine by their own
   (b) planets do not twinkle like stars
   (c) planets are much smaller than stars
   (d) All the above
Ans: (d)
406. The planet that has got a well-developed set of rings is
   (a) Venus
   (b) Saturn
   (c) Mercury
   (d) Earth
Ans: (b)
407. The rings of Saturn were discovered by
   (a) Galileo
   (b) Bhaskara
   (c) Aryabhatta
   (d) Ptolemy
Ans: (a)
408. The planet that moves fastest around the sun is
   (a) Mars
   (b) Venus
   (c) Earth
   (d) Mercury
Ans: (d)
409. The largest planet in the solar system is
   (a) Neptune
   (b) Uranus
   (c) Jupiter
   (d) Saturn
Ans: (c)
410. The planet that spins Caster than any other planet is
   (a) Saturn