In sewers the gas generally found, is_________________?
Found an error? Read our corrections policy and submit a sourced correction below. You can also share a useful explanation in your own words.
A. Carbon dioxide (CO2)
B. Methane (CH4)
D. Hydrogen sulphide (H2S)
Found an error? Read our corrections policy and submit a sourced correction below. You can also share a useful explanation in your own words.