Asked by Beatrice

1. The combination of sulfur dioxide, nitrogen oxide, and atmospheric moisture creates
A. drinking water.
B. smog.
C. pesticides.
D. acid rain.
D?

2. Another name for unicellular organisms that dominated Earth up to the Precambrian time is
A. eukaryotes.
B. cyanobacteria.
C. prokaryotes.
D. stromatolites.
C?

3. A substance that enters Earth's cycles and does harm to living things is
A. a pollutant.
B. freshwater.
C. oxygen.
D. hydrogen.
A?
Answered by bobpursley
yes, yes, yes.
Answered by Beatrice
thanks
Answered by Gtho
Yah mommah'
Answered by Diamond HGernd
Small fragments of orbiting bodies that have fallen on Earth's surface are known as
Answered by Penn Foster
Please do not solicit answers on Y!A, as this is considered cheating.
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Penn Foster
Answered by Penn Foster
Please do not solicit answers on Jishka, as this is considered cheating.
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Penn Foster
Answered by Joseph
B. smog
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