Our environment comprises of two factors namely biotic factors and abiotic factors. Biotic factors are those in ecosystem that consists of all living organisms such as plants, trees, humans, insects, animals, birds, etc. These living organisms will interact with each other and sustain their life.
Abiotic factors are those that contain non-living organisms. These factors include soil, air, water, sun light, etc. These factors often have greater impact on biotic factors. From the question, plant is a living thing and it belongs to biotic factor.