2521: The winter rain in Madras is caused by:
(a) South-West Monsoons
(b) North-East Monsoons
(c) Intense land and sea breezes
(d) Cyclonic winds in the Bay of Bengal
2522: In a political party of 36 members, the minimum number of members needed to split for disqualifying the original political party as per Anti-Defection Law should be:
(a) 9
(b) 12
(c) 18
(d) 24
2523: Which one of the following elements is essential for the construction of nuclear reactors ?
(a) Cobalt
(b) Nickel
(c) Zirconium
(d) Tungsten
2524: Plants take nitrogen in the form of:
(a) Nitrites
(b) Ammonia
(c) Nitrates
(d) Element
2525: What would happen if phytoplankton of an ocean is completely destroyed for some reason?
1. The ocean as a carbon sink would be adversely affected.
2. The food chains in the ocean would be adversely affected.
3. The density of ocean water would drastically decrease.
Select the correct answer using the codes given below :
(a) 1 and 2 only
(b) 2 only
(c) 3 only
(d) 1, 2 and 3