Competition Practice Day 4

Over the course of the next few months, I will post some multiple choice questions for you to answer. On the final meeting on May 14, if you answer all of the questions correctly, I will give you a cookie. ;)

MC Practice Day 4

7. Which of the following climate systems covers approximately 27% of the Earth's surface?
        (A) atmosphere

        (B) hydrosphere

        (C) cryosphere

        (D) lithosphere

        (E) biosphere

8. Nearly what percent of the Earth's freshwater is found in the cryosphere?

        (A) 20%

        (B) 25%

        (C) 33%

        (D) 50%

        (E) 75%