Answer:
Study of an interacting system of living beings and their nonliving physical environment
Step-by-step explanation:
Ecosystem is an interacting system of living beings and their nonliving physical environment. It includes study of biotic and abiotic factors and their interaction with each other.
Biotic factor: All the living beings present in the ecosystem makes its biotic factors.
Abiotic factors: The physical environment of the ecosystem makes its abiotic factor. It includes soil type, topography, temperature, humidity, wind pattern etc.