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Which of these supplements, when added t...

Which of these supplements, when added to soil, would not contribute to pollution?

A

Urea

B

Potash

C

Compost

D

Ammonium sulphate

Text Solution

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The correct Answer is:
C
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  10. Which of these processes should a farmer carry out in order to separat...

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  12. Which one of these processes is carried out by a combine?

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  14. Which one of these chemicals can be used to remove termites in fields?

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