Industrial smog causes air to turn
A) gray.
B) black.
C) brown.
D) red.
E) blue.
Correct Answer:
Verified
Q52: Which gasses are considered "greenhouse gasses"?
A) carbon
Q53: Based on industrialization, which region of the
Q54: The atmosphere above which region is known
Q55: What results when nitrogen dioxide and hydrocarbons
Q56: Which atmospheric gas does not affect global
Q58: Which factor is NOT characteristic of a
Q59: Greenhouse gasses act to
A) warm the Earth's
Q60: Which acid is a severe air pollutant?
A)
Q61: In 2006, what was the average amount
Q62: The new, high-yield crops require which of
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