Major part of dry weight of a plant is derived from elements obtained from

Options :
  1. soil
  2. air
  3. water
  4. decomposing organic matter
Answer and Explanation :-

Answer: Option 2

Explanation:

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Before I can live with other folks I've got to live with myself. The one thing that doesn't abide by majority rule is a person's conscience.
-Harper Lee To Kill a Mockingbird