A) Wheat, rice and maize
B) Wheat, rice and barley
C) Wheat, maize and sorghum
D) Rice, maize and sorghum
Correct Answer: A
Solution :
[a] During the period 1960 to 2000, wheat production increased from 11 million to 75 million tones. Rice production went up from 35 million tone to 89.5 million tones. This was due to wheat and rice semi dwarf varieties.
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