351: 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
352: The gas used for artificial ripening of green fruits is
(a) Carbon dioxide
(b) Ethane
(c) Hydrogen
(d) acetylene (ethyne)
353: Which of the following statements is/are correct?
1. Viruses lack enzymes necessary for the generation of energy.
2. Viruses can be cultured in any synthetic medium.
3. Viruses are transmitted from one organism to another by biological vectors only.
Select the correct answer using the codes given below.
(a) 1 only
(b) 2 and 3 only
(c) 1 and 3 only
(d) 1, 2 and 3
354: Consider the following statements regarding the political parties in India:
I. The Representation of the People Act, 1951 provides for the registration of political parties.
II. Registration of political parties is carried out by the Election Commission.
III. A national level political party is one which is recognised in four or more States.
IV. During the 1999 general elections, there were six National and 48 State level parties recognised by the Election Commission.
Which of these statements are correct ?
(a) I, II and IV
(b) I and III
(c) II and IV
(d) I, II, III and IV
355: Consider the following statements :
1. In India, Red Panda is naturally found in the Western Himalayas only.
2. In India, Slow Loris lives in the dense forests of the North East.
Which of the statements given above is/are correct?
(a) 1 only
(b) 2 only
(c) Both 1 and 2
(d) Neither 1 nor 2