16: 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
17: Which pair among the following had the similar views during the national movement?
(a) Subrahmaniam Bharati and Bal Gangadhar Tilak
(b) Chittaranjan Das and Motilal Nehru
(c) Chittaranjan Das and Rajagopalachari
(d) Mahatma Gandhi and Shaukat Ali
18: Consider the following statements :
The most effective contribution made by Dadabhai Naoroji to the cause of Indian National Movement was that he
1. exposed the economic exploitation of India by the British
2. interpreted the ancient Indian texts and restored the self-confidence of Indians
3. stressed the need for eradication of all the social evils before anything else
Which of the statements given above is/are correct?
(a) 1 only
(b) 2 and 3 only
(c) 1 and 3 only
(d) 1, 2 and 3
19: Consider the following statements:
1. The forest cover in India constitutes around 20% of its geographical area. Out of the total forest cover, dense forest constitutes around 40%.
2. The national Forestry Action Programme aims at bringing one-third of the area of India under tree/forest cover.
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
20: Arteries supplying blood to the heart are called
(a) carotid arteries
(b) hepatic arteries
(c) coronary arteries
(d) pulmonary arteries