1531: The sun derives its energy from:

(a) Nuclear fission reactions.

(b) Nuclear fusion reactions.

(c) Oxidation of helium.

(d) Fission of noble metals.
1532: In Mizoram, the settlement pattern is mostly of "linear type" along the ridges, because

(a) the valleys are cooler than the ridges

(b) accessibility is easier on the ridge tops

(c) the ridges are cooler than the valleys

(d) the valleys are densely forested
1533: Tarun Bharat Sangh, an organization based in a village near Alwar (Rajasthan), has become famous because of:

(a) Cultivation of genetically modified cotton

(b) Rehabilitation of women victims of AIDS

(c) Livelihood projects for destitute rural women

(d) Rain-water harvesting
1534: Which of the following is not included in the list of Fundamental Duties in the Constitution?

(a) To safeguard public property and to abjure violence

(b) To uphold and protect the sovereignty, unity and integrity of India

(c) Secularism

(d) To abide by the Constitution and respect its ideals
1535: A boat which has a speed of 5 km/hr in still water crosses a river of width 1 km along the shortest possible path in 15 minutes. The velocity of the river water in km/hr is

(a) 1
(b) 3
(c) 4
(d)