56: Consider the following statements :
AIDS is transmitted

I. by sexual intercourse.
II. by blood transfusion.
III. by mosquitoes and other blood sucking insects.
IV. across the placenta.

Of these statements
(a) I, II and III are correct
(b) I, II and IV are correct
(c) I, II and IV are correct
(d) I and III are correct
57: What is the correct sequence of the following events ?

I. The August Offer
II. The I. N. A. trial
III. The Quit India Movement
IV. The Royal Indian Naval Ratings Revolt

Select the correct answer using the codes given below :

Codes :
(a) I, III, II, IV
(b) III, I, II, IV
(c) I, III, IV, II
(d) III, I, IV, II
58: Consider the following high yielding varieties of crops in India :
1. Arjun
2. Jaya
3. Padma
4. Sonalika
Which of these are wheat ?
(a) 1 and 2
(b) 2 and 3
(c) 1 and 4
(d) 3 and 4
59: Fog is common around Newfoundland coast because:

(a) Icebergs melt around the coast

(b) Warm and cold currents meet

(c) The rainfall is heavy

(d) High tides cause storms
60: In the context of food and nutritional security of India, enhancing the 'Seed Replacement Rates' of various crops helps in achieving the food production targets of the future. But what is/are the constraint/ constraints in its wider/greater implementation?

1. There is no National Seeds Policy in place.
2. There is no participation of private sector seed companies in the supply of quality seeds of vegetables and planting materials of horticultural crops.
3. There is a demand-supply gap regarding quality seeds in case of low value and high volume crops.

Select the correct answer using the code given below.

(a) 1 and 2
(b) 3 only
(c) 2 and 3
(d) None