2981: The most appropriate measure of a country's economic growth is its
(a) Gross Domestic Product
(b) Net Domestic Product
(c) Net National Product
(d) Per Capita Real Income
2982: If water pollution continues at its present rate, it will eventually
(a) stop water cycle
(b) prevent precipitation
(c) make oxygen molecules unavailable to water plants
(d) make nitrate unavailable to water plants
2983: The process of light exposure in a 24-hour cycle that controls the growth and development of certain plants and animals is called:
(a) Photosynthesis
(b) Photoionisation
(c) Photoperiodism
(d) Photoluminescence
2984: Under which Schedule of the Constitution of India can the transfer of tribal land to private parties for mining be declared null and void?
(a) Third Schedule
(b) Fifth Schedule
(c) Ninth Schedule
(d) Twelfth Schedule
2985: The chief ingredient of the mosquito repellent cream is derived from:
(a) Tulsi
(b) Neem
(c) Lemon
(d) Rice bran