3156: The tropical deciduous trees shed their leaves in summer:
(a) Leaves get dried up due to the excessive heat
(b) To prevent excessive loss of water through transpiration
(c) Because rainfall is inadequate
(d) Days are longer
3157: Match List-I (Books) with List-II (Authors) and select the correct answer using the codes given below the Lists:
List-I List-II
(Books) (Authors)
A. My Presidential Years 1. S. Radhakrishnan
B. The Hindu View of Life 2. V. V. Giri
C. Voice of Conscience 3. N. Sanjiva Reddy
D. Without Fear or Favour 4. R. Venkataraman
Codes:
A B C D
(a) 2 1 4 3
(b) 4 3 2 1
(c) 2 3 4 1
(d) 4 1 2 3
3158: If there were no organic life on the Earth, the amount of oxygen in the atmosphere will:
(a) Remain unchanged.
(b) Be approximately hundred per cent.
(c) Be almost nil.
(d) Be approximately fifty per cent.
3159: Which one of the following rivers does not originate in India?
(a) Beas
(b) Ravi
(c) Chenab
(d) Sutlej
3160: What is the correct sequence of occurrence of the following cities in South-East Asia as one proceeds from south to north?
1. Bangkok
2. Hanoi
3. Jakarta
4. Singapore
Select the correct answer using the code given below:
(a) 4 - 2 - 1 - 3
(b) 3 - 2 - 4 - 1
(c) 3 - 4 - 1 - 2
(d) 4 - 3 - 2 - 1