1.

Consider the following statements: Nitrogen is an essential constituent of 1. soils 2. animals 3. plants Which of the statements given above is/are correct ? (a) 3 only (b) 1 and 3 only (c) 1 and 2 only (d) 1, 2 and 3

Answer»

The correct option is: (c) 1 and 2 only

Explanation:

Nitrogen is a essential constituent of all vegetables and animal proteins. Soil contains nitrogen as ammonium salts.



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