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Subjects
Science CBSE
Class 9
Improvement in food resources
Crop yield improvement
9.
Methods to improve crop variety and nutrients supplied through soil
Exercise condition:
4
m.
Choose the correct answer
:
1
.
For accepting a new crop variety the criteria is
variety should be of good quality
all seeds should be of the same variety
variety should produce high yields under different conditions
all of the above
2
.
Production practices are divided into
no cost production
low cost production
high cost production
all of the above
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