CBSE Class IX Biology Solutions

Displaying 5 out of 43 questions & answers.
Q1.

Define vermicompost.

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Q2.

What do you mean by biofertilizer?

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Q3.

Why is organic matter important for crop production?

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Q4.

Why is excess use of fertilizers detrimental for environment?

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Q5.

Define green manure and give an example.

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