Secondary pollutants are
A. chemicals or substances emitted directly into the air.
B. those formed from reactions with other pollutants in the atmosphere.
C. found only in stratospheric ozone
D. also known as natural pollutants.
E. found only in fossil fuels.
Answer: B
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Population change =
A.
(Births + Deaths) 
(Immigration + Emigration)
B.
(Births 
Emigration) + (Deaths 
Immigration)
C.
(Births 
Immigration) + (Deaths 
Emigration)
D.
(Births + Emigration) 
(Deaths + Immigration)
E.
(Births + Immigration) 
(Deaths + Emigration)
Coffee is a valuable commodity grown in tropical forests that are threatened by deforestation. Bees inhabiting these tropical forests pollinate the coffee flowers; thus, the forests provide:
A. economic value B. hedonic value C. $42 per hectare in conservation practices" D. $385 per hectare of pollinating services annually
Calcite, halite, gypsum, and quartz are all light colored minerals with a similar appearance; however each mineral has a diagnostic property that makes it distinguishable from the others. Discuss in detail how you could easily identify these minerals
What will be an ideal response?
What ion was used as a tracer in the Cape Cod experiment?
A) chloride B) bromide C) dioxide D) sulfide