1056: 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.
1057: Which of the following substances are found in the beach sands of many parts of Kerala?
1. Ilmenite
2. Zircon
3. Silimanite
4. Tungsten
Select the correct answer using the code given below :
(a) 1, 2, 3 and 4
(b) 1, 2 and 3
(c) 3 and 4 only
(d) 1 and 2 only
1058: Which one of the following is the correct sequence in increasing order of molecular weights of the hydrocarbons ?
(a) Methane, ethane, propane and butane
(b) Propane, butane, ethane and methane
(c) Butane, ethane, propane and methane
(d) Butane, propane, ethane and methane
1059: The given map refers to the kingdom of
(a) Akbar at the time of capture of Khandesh in 1601
(b) Akbar at the time of his death in 1605
(c) Aurangzeb at the time of capture of Hyderabad
(d) Aurangzeb at the time of his death in 1707
1060: The given map shows four towns of Central Asian region marked as 1, 2, 3, and 4. Identify these from the following list and select the correct answer using the codes given below :
Towns:
A. Bishkek
B. Ashkhabad
C. Tashkent
D. Dushanbe
Codes :
(a) A-3, B-1, C-3, D-4
(b) A-3, B-1, C-4, D-2
(c) A-1, B-3, C-2, D-4
(d) A-1, B-3, C-4, D-2