Sunlight,sunlight is extremely important due to the fact that plants and animals and pretty much everything on earth needs sunlight,without the sun we wouldn't have water because we need the sun for photosynthesis.
Limiting factors determine carrying capacity. The availability of abiotic factors and biotic factors dictates how many organisms can live in an ecosystem. Carrying capacity is also impacted by the availability of decomposers. ... Humans can also alter carrying capacity.