Question

Any two factor which affect the primary productivity

Answer 1

Primary production, on which almost all of life on earth is dependent, occurs through either photosynthesis or chemosynthesis. Annual biomass production, used to estimate net primary productivity by plants in an area, is directly influenced by an environment's abiotic factors, which include temperature and moisture.

Answer 2

(a) plant species inhabiting a particular area.

(b) availability of nutrients in the soil.

(c) variety of environmental factors.