19. Which of the following is the natural cause of air pollution?
a. Chlorofluorocarbons
C. volcanoes
b. Smog
d. Nitrogen dioxide
Answers
Answered by
1
Answer:
a or d
Explanation:
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Answered by
1
Answer:
option c is the right answer
Some of the natural sources of air pollution are organic compounds from plants, sea salt, suspended soils and dusts (e.g. from the Sahara). Other natural sources are released during catastrophes such as volcanic eruptions and forest fires.
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