516: At which one of the following Place did Mahatma Gandhi first start his Satyagraha in India?

(a) Ahmedabad
(b) Bardoli
(c) kheda
(d) Champaran

517: Who is Wole Soyinka ?

(A) A novel Prize winner for literature.
(B) A well-known economist
(C) A well-known industrialist owning steel plants in many parts of the world.
(D) A well-known football player
518: Consider the following pairs:

Craft Heritage of
1. Puthukkuli shawls Tamil Nadu
2. Sujni embroidery Maharashtra
3. Uppada Jamdani saris Karnataka

Which of the pairs given above is/are correct?
(a) 1 only
(b) 1 and 2
(c) 3 only
(d) 2 and 3
519: Hygrometer is used to measure:

(a) Density of a liquid

(b) Relative humidity of atmosphere

(c) Absorption power of plants

(d) Temperature of air
520: It has been found recently that the acidity of the soil increases because of:

(a) Leaching away of bases

(b) Increased use of ammonia

(c) Increased use of urea

(d) Increased use of rock phosphate