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प्रश्न
Which one of the following roles is not characteristic of an essential element?
विकल्प
Being a component of biomolecules
Changing the chemistry of soil
Being a structural component of energy related chemical compounds
Activation or inhibition of enzymes
उत्तर
Changing the chemistry of soil
Explanation:
Soil is not a living thing, and hence essential elements have no role to play in soil chemistry.
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