Engineering Board Exam Reviewer · Environmental Engineering · easy

The main source of carbon monoxide in urban areas is:

1. Volcanic eruptions
2. Ocean spray
3. Plant photosynthesis
4. Motor vehicle exhaust

Answer

D. Motor vehicle exhaust

Solution

CO results from incomplete combustion.

More Environmental Engineering questions

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2. Ground-level ozone is classified as a:
3. Which of the following is a primary air pollutant (emitted directly from a source)?
4. Turbidity in water is caused by:
5. Water hardness is caused mainly by dissolved:
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7. A trickling filter is an example of a/an:
8. The activated sludge process is a/an:
9. Secondary treatment of wastewater mainly removes:
10. Primary treatment of wastewater mainly removes:

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