Why is it important to study whole ecosystems? A. It is more interesting
B. Individual pieces are independent
C. All parts of an ecosystem are interdependent
D. Only the primary producers are important

hope this helps D..

Explanation:

It is important because it helps to understand the vital connections between plants and animals

the scientific method.

rising temperatures because when water vapor in the air is cooled, it condenses. it turns back into a liquid and attaches to dust particles in the air. these very small water droplets group together to form clouds