Why do pulses like gram and tur improve soil fertility?
AThey kill pests
BThey fix nitrogen
CThey add iron
DThey hold water
Answer & Solution
Correct answer: B. They fix nitrogen
1. Pulses are legume crops.
2. They fix nitrogen in the soil.
3. They are also rich in protein.
_Source: NCERT Class 12 Geography, India People and Economy, Chapter 5, Land Resources and Agriculture._
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