(21) To an astronaut, the outer space appears
(a) White
(b) Deep blue
(c) Crimson
(d) Black
(22) Radio Carbon dating technique is used to estimate the age of
(a) Sail
(b) Buildings
(c) Rocks
(d) Fossils
(23) Which part of the camera is analogous to the retina in the human eye
(a) Shutter
(b) Lens
(c) Film
(d) Aperture
(24) Which of the following sate is the largest producer of coffee in India ?
(a) West Bengal
(b) Kerala
(c) Karnataka
(d) Odissa
(25) Jaundice results from the malfunctioning of the –
(a) Kidney
(b) Lungs
(c) Liver
(d) Heart