2356: 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.
2357: Which one of the following techniques can be used to establish the paternity of a child ?
(a) Protein analysis
(b) Chromosome counting
(c) Quantitative analysis of DNA
(d) DNA finger-printing
2358: Chips used in integrated circuits in computers are made of:
(a) Mica
(b) Manganese
(c) Silicon
(d) Zinc
2359: For which one of the following books did kiran Desai win the Man Booker Prize 2006?
(a) Mother's Milk
(b) In the Country of Men
(c) The Secret River
(d) Journalism
2360: Which one of the following is the correct sequence in the order of decreasing length of the three structural parts given below of small intestine in the human body?
(a) Ileum - Jejunum - Duodenum
(b) Ileum - Duodenum- Duodenum
(c) Jejunum -Ileum - Duodenum
(d) Jejunum - Duodenum - Ileum