951: Salinization occurs when the irrigation water accumulated in the soil evapo- rates, leaving behind salts and minerals. What are the effects of salinization on the irrigated land?

(a) It greatly increases the crop production.

(b) It makes some soils impermeable.

(c) It raises the water table.

(d) It fills the air spaces in the soil with water.
952: The main function of the I.M.F. is to

(a) arrange international deposits from banks

(b) help to solve balance of payments problems of member countries

(c) act as a private sector lending arm of the World Bank

(d) finance investment to developing countries
953: Contour bunding is a method of conservation used in

(a) desert margins, liable to strong wind action

(b) low flat plains, close to stream courses, liable to flooding

(c) scrublands, liable to spread of weed growth

(d) None of the above
954: Acceleration due to gravity on moon is 0.166 times than that on the earth. A man weighing 60 kg on earth would weigh _______ kg on moon.

(a) 16.6 kg

(b) 30 kg

(c) 60 kg

(d) 10 kg
955: Which of the following bodies does not/do not find mention in the Constitution?

1. National Development Council

2. Planning Commission

3. Zonal Councils

Select the correct answer using the codes given below.

(a) 1 and 2 only
(b) 1 and 3 only
(c) 2 only
(d) 1, 2 and 3