3191: If you are the ninth person in the queue starting from either end, than the number of persons in the queue is
(a) 10
(b) 15
(c) 17
(d) 19
3192: If water pollution continues at its present rate, it will eventually
(a) stop water cycle
(b) prevent precipitation
(c) make oxygen molecules unavailable to water plants
(d) make nitrate unavailable to water plants
3193: Consider the following statements:
1. The Earth's magnetic field has reversed every few hundred thousand years.
2. When the Earth was created more than 4000 million years ago, there was 54% oxygen and no carbon dioxide.
3. When living organisms originated, they modified the early atmosphere of the Earth.
Which of the statements given above is/are correct?
(a) 1 only
(b) 2 and 3 only
(c) 1 and 3 only
(d) 1, 2 and 3
3194: Contour bunding is used:
(a) To stop the winds in sandy deserts
(b) To irrigate desert areas
(c) To prevent erosion in hilly areas
(d) None of the above
3195: In which of the following States is lion-tailed macaque found in its natural habitat?
1. Tamil Nadu
2. Kerala
3. Karnataka
4. Andhra Pradesh
Select the correct answer using the codes given below.
(a) 2 only
(b) 1, 2 and 3 only
(c) 1, 3 and 4 only
(d) 1, 2, 3 and 4