I need help please !!

What are chlorofluorocarbons made of

Microorganisms aren’t all decomposers; in fact, many act as producers or primary consumers in an ecosystem. how do microorganisms that act as producers benefit the rest of an ecosystem in terms of energy transfer? what about microorganisms that act as primary consumers?

Suggest why placing wheels under a heavy box reduces the neccessary force required to push it along at a constant speed.