Which of the following is a natural source of air pollution?
A) dust blown by wind
B) Wildfires
C) Volcanoes
D) volatile organic chemicals released by some plants
E) all of these answers
Correct Answer:
Verified
Q3: In which of the following is the
Q4: Primary pollutants from burning coal include all
Q5: Which of the following are primary pollutants
Q6: All of the following are volatile organic
Q7: Which of the following are health problems
Q8: Which of the following forms of air
Q9: Photochemical smog is formed when primary pollutants
Q10: Which of the following is true of
Q11: Industrial smog used to be a serious
Q20: The correct sequence of layers of the
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