4471: Conception generally takes place at the time of:
(a) Menses
(b) Before menses
(c) Immediately after menses
(d) Two weeks after menses
4472: The contribution of India's small-scale sector to the gross turnover in the manufacturing sector since 1992 has been of the order of
(a) 40%
(b) 34%
(c) 30%
(d) 45%
4473: The memory of a computer is commonly expressed in terms of Kilobytes or Megabytes. A byte is made up of
(a) eight binary digits
(b) eight decimal digits
(c) two binary digits
(d) two decimal digits
4474: Which one of the following statements is not correct?
(a) The presence of NaCl increases the rate of setting of Plaster of Paris
(b) Gypsum is added to the cement to slow down its rate of setting
(c) All alkaline earth metals form hydrated salts
(d) Barium and Strontium are found free in nature
4475: Consider the following statements regarding environment issues of India:
I. Gulf of Mannar is one of the biosphere reserves.
II. The Ganga Action Plan, phase II has been merged with the National River Conservation Plan.
III. The National Museum of Natural History at New Delhi imparts non-formal education in environment and conservation.
IV. Environmental Information System (ENVIS) acts as a decentralised information network for environmental information.
Which of these statements are correct ?
(a) I, II and IV
(b) I, II, III and IV
(c) II and III
(d) I, III and IV