36: Consider the following crops of India :
1. Cowpea
2. Green gram
3. Pigeon pea
Which of the above is/are used as pulse, fodder and green manure?
(a) 1 and 2 only
(b) 2 only
(c) 1 and 3 only
(d) 1, 2 and 3
37: Permanent hardness of water cannot be removed by:
(a) Boiling
(b) Adding caustic soda
(c) Distillation
(d) Adding soda
38: Open stunted forests with bushes and small trees having long roots and sharp thorns or spines are commonly found in
(a) Eastern Orissa
(b) North-Eastern Tamil Nadu
(c) Siwaliks an Terai region
(d) Western Andhra Pradesh
39: Insect resistant cotton plants have been genetically engineered by inserting a gene from a/an
(a) virus
(b) bacterium
(c) insect
(d) plant
40: The money multiplier in an economy increases with which one of the following?
(a) Increase in the cash reserve ratio
(b) Increase in the banking habit of the population
(c) Increase in the statutory liquidity ratio
(d) Increase in the population of the country