Multiple Choice
What do all volatile organic compounds have in common?
A) All are carbon based.
B) All are produced from manmade sources.
C) All are emitted for processing and/or burning fossil fuels.
D) All are colorless, odorless reactive gases.
E) All are naturally occurring colorless and odorless gases found in rocks and vegetation.
Correct Answer:

Verified
Correct Answer:
Verified
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