Asked by SELENITAA
Which gas is a source of natural groundwater pollution?
A. Oxygen
B. Radon
C. Hydrogen
D. Carbon
i think its a
A. Oxygen
B. Radon
C. Hydrogen
D. Carbon
i think its a
Answers
Answered by
Ms. Sue
Oxygen is a polluter? I don't think so!
Answered by
Anonymous
Which gas is a source of natural groundwater pollution?
A. Hydrogen
B. Oxygen
C. Carbon
D. Radon
A. Hydrogen
B. Oxygen
C. Carbon
D. Radon
Answered by
Anonymous
Which of the following is not a type of mass movement that results from the force of gravity?
A. Deflation
B. Creep
C. Mudflow
D. Landslide
A. Deflation
B. Creep
C. Mudflow
D. Landslide
Answered by
Candi
the answer is D. Carbon
Answered by
kristina
well its not D. for sure cuz I took the Penn Foster test and it was wrong.
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