281: In the map given four areas are differently shaded, three of which indicate cereal production areas and one indicates non-cereal production areas and one indicates non-cereal production area. As per the index given, the non cereal crop production area is
(a) 1
(b) 2
(c) 3
(d) 4
282: Stainless steel contains which of the following?
(a) Aluminium and Zinc
(b) Chromium and Carbon
(c) Zinc and Mercury
(d) Copper and Cadmium
283: Assertion (A):
Unlike temperate forests, the tropical rain forests, if cleared, can yield productive farm-land that can support intensive agriculture for several years even without chemical fertilizers.
Reason (R):
The primary productivity of the tropical rain forest is very high when compared to that of the temperate forests.
(a) Both A and R are individually true and R is the correct explanation of A
(b) Both A and R are individually true but R is NOT the correct explanation of A
(c) A is true but R is false
(d) A is false but R is true
284: Consider the following statements :
1. Hepatitis B is several times more infectious than HIV/AIDS
2. Hepatitis B can cause liver cancer
Which of the statements given above is /are correct ?
(a) 1 only
(b) 2 only
(c) Both 1 and 2
(d) Neither 1 nor 2
285: Which one of the following hormones contains iodine ?
(a) Thyroxine
(b) Testosterone
(c) Insulin
(d) Adrenaline