Question: Choose your answer.

Which substance is usually found in nature as a liquid, solid, and gas?
My Answer: water

Question: Choose your answer.

What is a galaxy?
My Answer: a very large system of stars that is held together by gravity

Question: Choose your answer.

The brown tree snake is a nonnative species found on the South Pacific island of Guam. The brown tree snake population in Guam is so large that it negatively affects the humans there. Which statement best explains why the brown tree snake has flourished in Guam?
My Answer: There are no natural snake predators.

Question: Choose your answer.

One thing that all human cells have in common is that they
My Answer:
take in energy.