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281. Triticale is the first man-made plant to join the rank of cereals and is a remarkable success story in hybridisation. Triticale is a hybrid of
A. wheat and corn
B. wheat and soyabean
C. wheat and rice
D. wheat and rye
Explanation:
282. Which of the following is not obtained from the bark of a tree ?
A. Cinnamom
B. Quinine
C. Bhang
D. Tannin
Explanation:
283. Why are two blankets warmer than one ?
A. Two blankets have more wool and hence, provide greater warmth.
B. Two blankets enclose air which does not allow the cold to penetrate.
C. Two blankets compress the air in between the body and the blankets and this comperession produces heat.
D. None of these
Explanation:
284. A red object when seen through a thick blue glass appears
A. green
B. violet
C. black
D. red
Explanation:
285. A healthy man consumes maximum calories while playing
A. golf
B. rambha-rambha dance
C. football
D. billiards
Explanation:
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