Macronutrients like carbon, hydrogen and oxygen are obtained mainly from |
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a) |
b) |
c) |
Both (a) and (b) |
d) |
Soil |
Macronutrients like carbon, hydrogen and oxygen are obtained mainly from |
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a) |
b) |
c) |
Both (a) and (b) |
d) |
Soil |
(c) Of the known macronutrients, carbon, hydrogen and oxygen are mainly obtained from and , while the others are absorbed from the soil as mineral nutrients |