Multiple Choice
What is the MOST important reason for Earth's need for the ozone layer?
A) The ozone layer protects Earth from the solar wind.
B) The ozone layer allows long-distance radio communication by reflecting radio waves to Earth's surface.
C) The ozone layer shields Earth from harmful solar ultraviolet radiation.
D) The ozone layer provides a convenient dumping site for chlorofluorocarbon chemicals, which are harmful to life.
Correct Answer:

Verified
Correct Answer:
Verified
Q235: Earth's "albedo" is the fraction of radiant
Q236: Billions of years ago, Earth's atmosphere was
Q237: Coronal mass ejections can have all of
Q238: Where is the mantle of Earth located?<br>A)
Q239: Although it is not yet known precisely
Q241: The Mid-Atlantic Ridge is being produced by<br>A)
Q242: The Himalayan Mountains in Asia were formed
Q243: High tide at any location on Earth
Q244: An "ozone hole" is<br>A) a region centered
Q245: How was the Mid-Atlantic Ridge formed?<br>A) Two