2241: The surface of a lake is frozen in severe winter, but the water at its bottom is still liquid. What is the reason?
(a) Ice is a bad conductor of heat
(b) Since the surface of the lake is at the same temperature as the air, no heat is lost
(c) The density of water is maximum at 4 degree celcius
(d) None of the statements (a), (b) and (c) given above is correct.
2242: In terms of value, which one of the following commodities accounted for the largest agricultural exports by India during the three year period from 1997- 1998 to 1999-2000?
(a) Cereals
(b) Marine products
(c) Spices
(d) Tea
2243: Assertion (A) :
The frequency of floods in North Indian plains has increased during the last couple of decades.
Reason (R) :
There has been reduction in the depth of river valleys due to deposition of silt.
(a) Both A and R are true, and R is the correct explanation of A
(b) Both A and R are true, but R is not a correct explanation of A
(c) A is true, but R is false
(d) A is false, but R is true
2244: Which of the following Constitutional Amendments are related to raising the number of Members of Lok Sabha to be elected from the States?
(a) 6th and 22nd
(b) 13th and 38th
(c) 7th and 31st
(d) 11th and 42nd
2245: Consider the following statements:
1. Longitude of Jabalpur's location is between those of Indore and Bhopal
2. Latitude of Aurangabad's location is between those of Vadodara and Pune
3. Bangalore is situated more southward than Chennai.
Which of these statements is/are?
(a) 1 and 3
(b) Only 2
(c) 2 and 3
(d) 1, 2 and 3