The upper atmosphere shield that blocks dangerous ultraviolet light, protecting humans from sunburn and skin cancer is called the .
A) ozone layer
B) ionosphere shield
C) stratosphere screen
D) ultraviolet filter
Correct Answer:
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Q36: Collective behavior is
A) logical.
B) short-lived.
C) predictable.
D) spontaneous.
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Q40: occurs when the usual conventions that guide
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Q43: Which of the following assumes societies evolve
Q44: Bob isstudying the scientific study of the
Q45: According to the Census Bureau, as of
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