Q2 of 21 Page 125

Fill in the blanks with suitable words:

Urea which is a chemical fertiliser is a rich source of _________.

Urea which is a chemical fertilizer is a rich source of nitrogen.


Explanation: Green plants require nitrogen for the production of protein. But plants cannot take in nitrogen from the air, it can only be absorbed when mobilized by Rhizobium bacteria or from the synthetic fertilizers which add nitrogen to soils


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