Air pollution is best defined as ________
A) suspended particles of gases that contain small amounts of solids and liquids
B) small particles in the atmosphere arising from volatile organic compounds
C) organic chemicals that can vaporize into the air
D) gases or particles present in high enough concentrations in the atmosphere to harm humans, other organisms and structures
E) any gases in Earth's atmosphere in trace amounts
Answer: D
You might also like to view...
Important characteristics to observe in rocks include
A. sizes and shapes of crystals. B. types of minerals present. C. presence or absence of layers. D. All of these choices are correct.
Tree roots can interact with the geological environment to help reduce landsliding
Indicate whether the statement is true or false
Total fertility rate is very similar to the average number of children per family
Indicate whether the statement is true or false
The Three Gorges Dam has been constructed on which river in China?
A) Yangtze B) Huang He C) Xi D) Mekong E) Irawaddy