Which of the Following is Not a Limiting Factor in Primary

Question

Which of the following is not a limiting factor in primary production?
A) water
B) oxygen
C) micronutrients
D) red light
E) none of the above

Accepted Answer

Oxygen is not a limiting factor in primary production because plants primarily require carbon dioxide, water, and sunlight for photosynthesis. Oxygen is a byproduct of this process.