List two biotic and abiotic factors each that affect population growth:

(ii) List two biotic and abiotic factors each that affect population growth.

The two biotic factors are competition and predators. The two abiotic factors are rainfall and temperature. Other biotic factors are pathogens, natality, mortality, dispersal, parasites, food, etc. Other abiotic factors are topography, acidity or alkalinity of soil (i.e edaphic factors), space, light, intensity, attitude, turbidity, moisture, etc.

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