Q: Answer the question

Researchers work in teams to make cars more fuel efficient. Which of these statements describes the main advantage of working in teams rather than working individually?

A: The researchers can share their ideas.

Q: Answer the question

Rubbing sandpaper on a piece of wood produces what two types of energy?

A: sound and heat

Q: Answer the question

How are green plants an important part of the carbon dioxide-oxygen cycle?

A:
They release oxygen into the air.