Fly ash is composed of noncombustible minerals that escape into the atmosphere when coal burns.
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Q45: Temperature decreases continuously with altitude in all
Q46: In early Earth history, banded iron formations
Q47: An aerosol is any particle or particulate
Q48: Which statement about dioxin is true?
A) Dioxin
Q49: Oxygen comprises most of the air we
Q51: The process of smog formation occurs when
Q52: In the United States, the cost of
Q53: Chlorofluorocarbons and halons destroy ozone in the
Q54: Acidic precipitation is produced by _.
A) sulfur
Q55: Most iron is mined from banded iron
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