3386: After sowing seeds, the fertilisers used are:

(a) Phosphates

(b) Nitrates

(c) Green manures

(d) All of these
3387: Municipal water in India is generally treated with:

(a) Chlorine

(b) Potassium permanganate

(c) Sodium Chloride

(d) Sodium Carbonate
3388: The purpose of the inclusion of Directive Principles of State Policy in the Indian Constitution is to establish :

(a) political democracy
(b) social democracy
(c) Gandhian democracy
(d) social and economic democracy
3389: The approximate representation of land use classification in India is

(a) Net are sown 25%, forests 33% other areas 42%

(b) Net are sown 58%, forests 17% other areas 25%

(c) Net are sown 43%, forests 29% other areas 28%

(d) Net are sown 47%, forests 23% other areas 30%
3390: India is regarded as a country With "Demographic Dividend" This is due to

(a) Its high population in the age group of 15-64 years

(b) Its high population in the age group below 15 years

(c) Its high population in the age group above 65 years

(d) Its high total population