3451: 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
3452: Rennin and lactase, the enzymes required to digest milk, disappear in the human body by the age of
(a) two
(b) three
(c) five
(d) eight
3453: Consider the following statements:
Coal sector was nationalized by the Government of India under Indira Gandhi.
Now, coal blocks are allocated on lottery basis.
Till recently, India imported coal to meet the shortages of domestic supply, but now India is self-sufficient in coal production.
Which of the statements given above is/are correct?
(a) 1 only
(b) 2 and 3 only
(c) 3 only
(d) 1, 2 and 3
3454: Mahatma Gandhi undertook fast unto death in 1932, mainly because
(a) Round Table Conference failed to satisfy Indian political aspirations
(b) Congress and Muslim League had differences of opinion
(c) Ramsay Macdonald announced the Communal Award
(d) None of the statements (a), (b) and (c) given above is correct in this context
3455: In India, if a species of tortoise is declared protected under Schedule I of the Wildlife (Protection) Act, 1972, what does it imply?
(a) It enjoys the same level of protection as the tiger.
(b) It no longer exists in the wild, a few individuals are under captive protection; and now it is impossible to prevent its extinction.
(c) It is endemic to a particular region of India.
(d) Both (b) and (c) stated above are correct in this context.