186: The Brahmaputra, Irrawady and Mekong rivers originate in Tibet and flow it through narrow and parallel mountain ranges in their upper reaches. Of these rivers, Brahmaputra makes a "U" turn in its course to flow into India. This "U" turn is due to
(a) Uplift of folded Himalayan series
(b) Syntaxial bending of geologically young Himalayas
(c) Geo-tectonic disturbance in the tertiary folded mountain chains
(d) Both (a) and (b) above
187: The largest number of Buddhists is found in
(a) Bihar
(b) Karnataka
(c) Maharashtra
(d) Uttar Pradesh
188: If you walk through countryside, you are likely to see some birds stalking alongside the cattle to seize the insects disturbed by their movement through grasses. Which of the following is / are such bird/birds?
1. Painted Stork
2. Common Myna
3. Black-necked Crane
Select the correct answer using the code given below.
(a) 1 and 2
(b) 2 only
(c) 2 and 3
(d) 3 only
189: Assertion (A):
In India, the political parties which formed the governments represented the majority of seats secured in the elections to the House of the People at the Centre and the Legislative Assemblies in the States but not the majority of votes.
Reason (R):
The elections based on the majority -vote system decide the result on the basis of relative majority of votes secured.
In the context of the above statements, which one of the following is correct?
(a) Both A and R are true, and R is the correct explanation of A
(b) Both A and R are true, but R is not a correct explanation of A
(c) A is true, but R is false
(d) A is false, but R is true
190: Consider a specific point on the surface of the earth (say, the city of Delhi). The temperature at a given time of day (say, 12.00 noon) will in general be higher in summer than in winter. This is because
(a) the earth is closer to the sun in summer than in winter.
(b) sun-rays falling on the earth are inclined more towards the surface of the earth in winter.
(c) evaporation of water from atmospheric precipitation occurring in winter alone.
(d) the axis of the earth is inclined more towards the sun in summer.