Food Production and Food Chain CDS Questions

CDS Biology

Food Production and Food Chain MCQ Questions


13.
The agricultural practice of growing different crops in a planned sequence on the same field over successive seasons, helping maintain soil fertility, is called:
A.
Intercropping
B.
Monoculture
C.
Mixed cropping
D.
Crop rotation
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ANSWER :
D. Crop rotation
14.
The practice of growing two or more different crops simultaneously on the same field, without a definite row pattern, mainly to reduce the risk of complete crop failure, is called:
A.
Mixed cropping
B.
Crop rotation
C.
Monoculture
D.
Intercropping
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ANSWER :
A. Mixed cropping
15.
The agricultural practice of growing two or more crops simultaneously in a definite, alternating row pattern on the same field is known as:
A.
Monoculture
B.
Crop rotation
C.
Intercropping
D.
Mixed cropping
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ANSWER :
C. Intercropping
16.
The continuous practice of growing the same single crop on a piece of land, season after season, without any rotation, is generally referred to as:
A.
Mixed cropping
B.
Monoculture
C.
Intercropping
D.
Crop rotation
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ANSWER :
B. Monoculture
17.
Unwanted plants that grow alongside cultivated crops, competing for nutrients, water, and light, and reducing crop yield, are called:
A.
Biofertilizers
B.
Pesticides
C.
Manures
D.
Weeds
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ANSWER :
D. Weeds
18.
Chemical substances specifically used to control and destroy unwanted weeds growing among cultivated crops are called:
A.
Fungicides
B.
Insecticides
C.
Weedicides (herbicides)
D.
Biofertilizers
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ANSWER :
C. Weedicides (herbicides)