Q: Answer the question

What may form as a direct result of a star collapsing?

A: supernova

Q: Answer the question

A squid is an animal that lives in the ocean. It pumps a stream of water out of its body, causing it to move rapidly. Which of the following mechanical systems moves in a way most similar to the squid?

A: a rocket

Q: Answer the question

What is the major function of the human excretory system?

A:
eliminate waste materials