This planet is the closest planet to Earth. People wonder if there is life on this planet and it is thought to have once
had water. It is sometimes called the "red planet."
Which planet is it?

A. mars
B. venus
C. mercury
D. jupiter

Nwhat way does renewable energy differ from nonrenewable energy?

How does central place theory explain patterns in the size and distribution of cities?

Which of the following best describes the purpose of a nation’s boundaries? a. to limit the movement of goods and people b. to make it easier for cartographers to create maps c. to make the movement of goods and people easier d. to prevent other countries from invading territory