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Science CBSE Homework Assignments
Class 9
Improvement in food resources
Cropping patterns and Infestation
3.
Weeds, crop diseases, and insect pests
Task:
5
m.
Choose the correct answer
:
1
.
Takes up nutrients and decreases the growth of crops
none of the above
crop disease
weed
insect pests
2
.
Aphids
none of the abobve
weed
crop disease
insect pest
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