Multiple Choice
Uncontaminated rain water has a pH of 5.6 (slightly acidic) because
A) Oxides of sulfur are always present in the atmosphere, even from natural sources.
B) Droplets of water necessarily condense on atmospheric particulate.
C) Most water vapor originates by evaporation from the oceans and sea water is acidic.
D) Upon condensation, water chemically reacts with carbon dioxide forming a weak carbonic acid.
Correct Answer:
Verified
Correct Answer:
Verified
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