61: Who among the following anticipated Newton by declaring that all things gravitate to the earth ?
(a) Aryabhata
(b) Varahamihira
(c) Buddhagupta
(d) Brahmagupta
62: A man coming down on a lift leaves a ball from his hand. The ball will:
(a) Go up
(b) Fall down
(c) Remain stationary with respect to man
(d) Oscillate up and down
63: Sun's halo is produced by the refraction of light in
(a) Water vapour, in Stratus clouds
(b) Ice crystals in Cirro-Cumulus clouds
(c) Ice crystals in Cirrus clouds
(d) Dust particles in Stratus clouds
64: Apart from Tamil Nadu (Neyveli), lignite is found at:
(a) Gujarat
(b) Uttar Pradesh
(c) West Bengal
(d) Orissa
65: With reference to the evolution of living organisms, which one of the following sequences is correct?
(a) Salamander - Python - Kangaroo
(b) Octopus - Dolphin - Shark
(c) Pangolin - Tortoise - Hawk
(d) Frog - Crab - Prawn