Unit 3 Test, Earth Science, 2nd Semester

Match it! Select the correct answer from the pull down...Good luck!

Carbon dioxide enters the atmosphere through each of the following processes except one. Which one?

Which of the following is needed for the nitrogen cycle?

How do trees affect the water cycle if they are removed?

During which step of the water cycle is water changed from a vapor state to a liquid state?

Which of the following are often involved in a biogeochemical cycle?

What role do producers play in the carbon cycle?

Which element is the main component of all life?

In what form is most carbon released into the atmosphere?