Question

Which atom mostly limits the primary productivity?

• A. P
• B. O
• C. N
• D. C

Answer 1

The correct option is D C

There are various factors which limits the primary productivity. These include light, nutrients. Cycling of nutrients such as carbon, phosphorous, oxygen, nitrogen is an important component of an ecosystem. Out of these nutrient elements, carbon atom mostly limits the primary productivity. Primary productivity is the rate of production of organic compounds by photosynthetic organisms.

Thus, the correct answer is 'C.'