2621: Ten per cent of twenty plus twenty per cent of ten equals

(a) 10 per cent of 20

(b) 20 per cent of 20

(c) 1 per cent of 200

(d) 2 per cent of 200
2622: Which one of the following terms describes not only the physical space occupied by an organism, but also its functional role in the community of organisms?

(a) Ecotone

(b) Ecological niche

(c) Habitat

(d) Home range
2623: Which one of the following is also called Stranger Gas?

(a) Argon
(b) Nitrous oxide
(c) Xenon
(d) Neon
2624: India is a member of which of the following?

1. Asian Development Bank

2. Asia-Pacific Economic Cooperation

3. Colombo Plan

4. Organization for Economic Cooperation and Development (OECD)

Select the correct answer using the code given below:

(a) 1 and 3 only
(b) 1, 2 and 3 only
(c) 2 and 4 only
(d) 1, 2, 3 and 4
2625: Which one of the following is the correct decreasing sequence in terms of the value (in rupees) of the minerals produced in India in the year 2002-03?

(a) Metallic minerals - Fuel minerals - Non-metallic minerals
(b) Fuel minerals - Metallic minerals - Non-metallic minerals
(c) Metallic minerals - Non-metallic minerals - Fuel minerals
(d) Fuel minerals - Non-metallic minerals - Metallic minerals