686: Which one of the following is the largest (areawise) Lok Sabha constituency?
(a) Ladakh
(b) Kangra
(c) Kachchh
(d) Bhilwara
687: Consider the following statements regarding asteroids :
I. Asteroids are rocky debris of varying sizes orbiting the Sun.
II. Most of the asteroids are small but some have diameter as large as 1000 km.
III. The orbit of asteroids lies between the orbits of Jupiter and Saturn.
Of these statements :
(a) I, II and III are correct
(b) II and III are correct
(c) I and II are correct
(d) I and III are correct
688: To a person on the moon, the sky appears:
(a) White
(b) Black
(c) Blue
(d) Orange
689: Which one of the following scholars suggests the earth's origin from gases and dust particles ?
(a) James Jeans
(b) H. Alfven
(c) F. Hoyle
(d) O. Schmidt
690: Three flags, each of different colour, are available for a military exercise. Using these flags, different codes can be generated by waving
(i) Single flag of different colours, or
(ii) Any two flags in a different sequence of colours, or
(iii) Three flags in a different sequence of colour
The maximum number of codes that can be generated is
(a) 6
(b) 9
(c) 15
(d) 18