1631: Cover of a solar cooker is made of glass. Why ?
(a) It absorbs sun rays
(b) It reflects sun rays
(c) Sun heat is transmitted through glass without much absorption
(d) None of these
1632: The New Exim Policy announced in 1992, is for a period of
(a) 3 Years
(b) 4 Years
(c) 7 Years
(d) 5 Years
1633: The marine animal called dugong which is vulnerable to extinction is a/an
(a) Shark
(b) Mammal
(c) Amphibian
(d) Bony fish
1634: Which one of the following types of coal contains a higher percentage of carbon than the rest ?
(a) Bituminous coal
(b) Lignite
(c) Peat
(d) Anthracite
1635: Which of the following events is not correct ?
(a) Simon Commission --- 1928
(b) Salt Satyagraha --- 1930
(c) Gandhi-lrwin Pact --- 1931
(d) Quit India Movement --- 1942