3851: The ancient Indian coins were introduced during the:
(a) 3rd century AD
(b) 3rd century BC
(c) Kanishka's period
(d) Ashoka's reign
3852: The most important fishing grounds of the world are found in the regions where
(a) warm and cold atmospheric currents meet
(b) rivers drain out large amounts of fresh water into the sea
(c) warm and cold oceanic currents meet
(d) continental shelf is undulating
3853: In the Mekong-Ganga Cooperation, an initiative of six countries, which of the following is/are not a participant/ participants?
1. Bangladesh
2. Cambodia
3. China
4. Myanmar
5. Thailand
Select the correct answer using the code given below.
(a) 1 only
(b) 2, 3 and 4
(c) 1 and 3
(d) 1, 2 and 5
3854: In a wooden box there are 3 red and 4 black balls. If two balls are taken out Simultaneously (without looking at them), then the probability of both the balls being red is
(a) Zero
(b) 1/7
(c) 2/7
(d) 3/7
3855: How do most insects respire?
(a) Through gills
(b) By tracheal system
(c) By lungs
(d) Through skin