Question

What has the greatest effect on primary productivity

Answer 1

Explanation:

It is known that many algal species have increased gross primary productivity (GPP) at higher temperatures [10,11], but net primary productivity (NPP) can be affected by different light environments and larger increases in respiration rates ....

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Answer 2

Answer:

Primary productivity varies among ecosystems and depends on many factors. These include solar energy input , temperature and moisture levels , carbon dioxide levels , nutrient availability and community interaction ( e.g. grazing by herbivores).