Which of the following is limiting nutrient for both natural and agricultural ecosystems? |
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a) |
Nitrogen oxides |
b) |
Nitrogen |
c) |
Ammonia |
d) |
Hydrogen |
Which of the following is limiting nutrient for both natural and agricultural ecosystems? |
|||||||
a) |
Nitrogen oxides |
b) |
Nitrogen |
c) |
Ammonia |
d) |
Hydrogen |
(b) Nitrogen is a limiting nutrient for both natural and agricultural ecosystems |