A. Nothing but black smoke
B. A combination of smoke and fog
C. A liquid particle resulting from vapor condensation
D. A solid particle e.g. fly-ash
Correct Answer: A combination of smoke and fog ✔
Last Updated: March 11, 2019
A. Nothing but black smoke
B. A combination of smoke and fog
C. A liquid particle resulting from vapor condensation
D. A solid particle e.g. fly-ash
Correct Answer: A combination of smoke and fog ✔
Last Updated: March 11, 2019