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1.

A. Carbon dioxide
B. Methane
C. Nitrogen

2.
A. Cells
B. Groundwater monitoring station
C. Methane collection system

1. A. Carbon dioxide B. Methane C. Nitrogen 2. A. Cells B. Groundwater monitoring-example-1

1 Answer

4 votes

Answer:

1. B. Methane

2. C. Methane collection system

User Mike Hanrahan
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