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Subjects
Biology CBSE Live product
Class 9 (2025-26)
Improvement in food resources
Annual Revision V
7.
Irrigation and crop rotation
Question:
5
m.
Choose the correct option
:
1
.
Small storage reservoirs which stores, supplies water in small fields
-
watershed management
tanks
riverlift system
rainwater harvesting
2
.
Condition caused due to low rainfall
-
drought-resistant crops
intercropping
crop rotation
mixed cropping
drought
3
.
Planting different crops in rotation
-
decrease in soil fertility
crop rotation
crop duration
better yield
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