Task 1.

1. What is an ecosystem?

A. All the interacting organisms that live in an environment and the abiotic parts of the

environment that affect the organisms

B. A person who observes and studies the interactions between the biotic and abiotic

parts of the environment

C. The relationship among the biotic parts of the environment

D. The relationship between all the abiotic elements of a pond помогите пожалуйста ​