Air pollution is best defined as ________. A) suspended ...

[abarnes]

Air pollution is best defined as ________.
 
  A) suspended particles of gases that contain small amounts of solids and liquids
  B) gases or particles present in high enough concentrations in the atmosphere to harm humans, other organisms and structures
  C) any gases in Earth's atmosphere in trace amounts
  D) small particles in the atmosphere arising from volatile organic compounds
  E) organic chemicals that can vaporize into the air

Question 2

List eight common nonsilicate minerals and their economic uses.
 
  What will be an ideal response?

[yasmin]

Answer to Question 1

B

Answer to Question 2

galena (sulfide; lead ore)
gypsum (sulfate; drywall)
halite (halide; table salt)
graphite (native element carbon; pencils, lubricant)
hematite (oxide; iron ore)
chalcopyrite (sulfide; copper ore)
corundum (oxide; abrasive)
gold (native element; jewelry, electronics, dentistry)