3151: Among living organisms, which one of the following is the most responsible factor for bringing about the origin of a new species?
(a) Isolation
(b) Mutation
(c) Natural Selection
(d) Sexual Reproduction
3152: Consider the following temperature and rainfall data :
Month Temperature degree C Rainfall cm
January 6.7 14.0
February 6.7 13.2
March 7.2 11.4
April 8.9 9.4
May 11.1 8.1
June 13.9 8.1
July 15.0 9.6
August 15.0 12.2
September 13.9 10.4
October 11.1 14.4
November 8.9 14.0
December 7.8 16.8
The climate to which this data pertains is
(a) St. Lawrence type
(b) China type
(c) West European type
(d) Mediterranean type
3153: In India, in which one of the following types of forests is teak a dominant tree species?
(a) Tropical moist deciduous forest
(b) Tropical rain forest
(c) Tropical thorn scrub forest
(d) Temperate forest with grasslands
3154: A great landslide caused by an earthquake killed hundreds of people in January 2001 near
(a) San Salvador
(b) San Jose
(c) Managua
(d) Guatemala City
3155: An important aspect of the Cripps Mission of 1942 was
(a) that all Indian States should join the Indian Union as a condition to consider any degree of autonomy for India
(b) the creation of an Indian Union with Dominion status very soon after the Second World War
(c) the active participation and cooperation of the Indian people, communities and political parties in the British war effort as a
condition for granting independence with full sovereign status to India after war.
(d) the framing of a constitution for the entire Indian Union, with no separate constitution for any province, and a Union Constitution to be accepted by all provinces