Compare biotic and abiotic factors

Biotic: anything that's alive

Abiotic: everything that's non-living

Biotic and Abiotic are two factors in an ecosystem.

If a pond is taken as an example of an ecosystem that one can easily understand; then==

1) Biotic or living factors in that pond are = Fishes, aquatic plants, algae snails, slugs, and micro-organisms. Insects that visit the plants / flowers for pollination, fungi that bring about decomposition of dead organic mater are all Biotic.

2) Abiotic or non-living factors are = Soil / mud at the bottom,

water in the pond, its temperature and pH, the dissolved gases in the water, Sun shining in the sky and providing light.

These are all Abiotic.