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Question : The amount of mineral elements like iron, copper and zinc are required by the plants is

Answer»

Equal to 100 mmole `kg^-1` of DRY matter
Mnore than 10 mmole `kg^-1` of dry matter
Less than 10 mmol `kg^-1` of dry matter
Equal to 1.0 mmole `kg^-1` of dry matter

Answer :C


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