What is the main function of the ozone layer?
A) to provide cloud cover for protection of polar regions
B) to provide a source of oxygen for photosynthesis
C) to filter toxins from acid rain
D) to block most of the sun's damaging rays from reaching Earth
E) to trap carbon dioxide and warm the planet
Correct Answer:
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Q61: Matching
Match each description with the appropriate biome.
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A) lack
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