151: Major difference between Varna and Jati, is that:
(a) Jatis are limited whereas Varnas are unlimited
(b) Jatis are only four whereas Varnas are many
(c) Varnas are only four whereas Jatis are many
(d) Jati is decided by birth but not Varna
152: Consider the following statements regarding biomedication. It involves the use of bacteria and fungi to:
1. Clean up aquifers
2. Clean up toxic dumps
3. Clean up oil spills
4. Cure bacterial and fungal disease
(a) 1 and 2 are correct
(b) 1 and 3 are correct
(c) 1, 2 and 3 are correct
(d) 1, 2, 3 and 4 are correct
153: When one enters a dark room, he is not able to see anything but after some time his vision improves. This is because:
(a) The retina of the eye comes forward
(b) The retina of the eye moves backward
(c) The pupil of the eye contracts
(d) The pupil of the eye dilates
154: Consider the following statements :
1. The Oil Pool Account of Government of India was dismantled with effect from 1.4.2002.
2. Subsidies on PDS kerosene and domestic LPG are borne by Consolidated Fund of India.
3. An expert committee headed by Dr R. A. Mashelkar to formulate a national auto fuel policy recommended that Bharat State-II Emission Norms should be applied throughout the country by April 1, 2004.
Which of the statements given above are correct?
(a) 1 and 2
(b) 2 and 3
(c) 1 and 3
(d) 1, 2 and 3
155: Consider the following:
1. Star tortoise
2. Monitor lizard
3. Pygmy hog
4. Spider monkey
Which of the above are naturally found in India?
(a) 1 and 4 only
(b) 2 and 3 only
(c) 1, 2 and 3 only
(d) 1, 2 and 3 and 4