asked 230k views
3 votes
Which of the following are sources of CO2 and CH4 (methane)?

Decomposition by bacteria in swampy environments
Burning of fuels
Normal respiration/breathing of organisms
All of these are sources of CO2 and Methane

1 Answer

5 votes

Answer:

All of these are sources of CO2 and Methane

answered
User Barry Gackle
by
8.6k points
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