Macro nutrients like carbon hydrogen and
oxygen are obtain mainly from
Clear Response
CO only
О O
Soil
H2O only
Both 1 and 3
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The macronutrients include carbon, hydrogen, oxygen, nitrogen, phosphorous, sulphur, potassium, calcium and magnesium. Of these, carbon, hydrogen and oxygen are mainly obtained from CO2 and H2O, while the others are absorbed from the soil as mineral nutrition.
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