1496: Human activities in the recent past have caused the increased concentration of carbon dioxide in the atmosphere, but a lot of it does not remain in the lower atmosphere because of
1. Its escape into the outer strato-sphere.
2. The photosynthesis by phyto-plankton in the oceans.
3. The trapping of air in the polar ice caps
Which of the statements given above is/are correct?
(a) 1 and 2
(b) 2 only
(c) 2 and 3 only
(d) 3 only
1497: A, B, C, D, E, F and G are members of a family consisting of 4 adults and 3 children, two of whom, F and G are girls, A and D are brothers and A is a doctor. E is an engineer married to one of the brothers and has two children. B is married to D and G is their child. Who is C ?
(a) G's brother
(b) F's father
(c) E's daughter
(d) A's son
1498: With reference to the human body consider the following statements:
1. The production of somatotropin goes up when a person exercises
2. Men's testes produce progesterone
3. Women's adrenal glands secrete testosterone
4. Stress causes the adrenals to release very less amount of cortisol than usual
Which of these statements are correct?
(a) 1 2 3 4
(b) 1 2 3
(c) 2 3 4
(d) 1 and 4
1499: ".........instil into the vast millions of workers, men and women, who actually do the job, a sense of partnership and of cooperative performance...."
The above passage relates to
(a) Planned Development
(b) Community Development
(c) Panchayati Raj System
(d) Integrated Development Programme
1500: For reproducing sound, a CD (Compact Disc) audio player uses a
(a) quartz crystal
(b) titanium needle
(c) laser beam
(d) barium titanate ceramic