Define or give an example of an ecosystem​

The simplest definition of an ecosystem is that it is a community or group of living organisms that live in and interact with each other in a specific environment.

Seas, rivers

Explanation:

this is the correct answer you want

An ecosystem is a community of living organisms in conjunction with the nonliving components of their environment, interacting as a system. These biotic and abiotic components are linked together through nutrient cycles and energy flows.

the cost of mining is extremely low compared to the money earned from mining, creating income to improve the environment.

c. is the correct answer