3481: In the grasslands, trees do not replace the grasses as a part of an ecological succession because of
(a) insects and fungi
(b) limited sunlight and paucity of nutrients
(c) water limits and fire
(d) None of the above
3482: How many natural numbers are there between 43 and 200 which are exactly divisible by 6?
3483: Hybridoma technology is a new biotechnological approach for commercial production of
(a) monoclonal antibodies
(b) interferon
(c) antibodies
(d) alcohol
3484: Consider the following statements:
1. Second World Buddhist Summit was held in Bangkok in November-December, 2004.
2. World Punjabi Conference was held in Jalandhar in December, 2004.
3. 4th Meeting of the SARRC Trade Ministers was held in Islamabad in November, 2004.
Which of the following statements given above is/are correct?
(a) 1 and 2
(b) 2 and 3
(c) 3 only
(d) 1, 2 and 3
3485: Which one among the following rivers is the longest?
(a) Lena
(b) Congo
(c) Amur
(d) Amazon