2341: Climate is extreme, rainfall is scanty and the people used to be nomadic herders.
The above statement best describes which of the following regions?
(a) African Savannah
(b) Central Asian Steppe
(c) North American Prairie
(d) Siberian Tundra
2342: Which one of the following parts of human brain is the regulating centre for swallowing and vomiting?
(a) Pons
(b) Medulla oblongata
(c) Cerebrum
(d) Cerebellum
2343: In eye donation, which one of the following parts of donor's eye is utilised ?
(a) Iris
(b) Lens
(c) Cornea
(d) Retina
2344: Dry Farming in India is extensively practised in
(a) Kanara plains
(b) Deccan Region
(c) Coromandel plains
(d) Punjab plains
2345: The main constituents of pearl are
(a) calcium carbonate and magnesium carbonate
(b) aragonite and conchiolin
(c) ammonium sulphate and sodium carbonate
(d) calcium oxide and ammonium chloride