Question
Biology Question on Environmental Issues
During sewage treatment, biogases are produced which include
A
Methane, hydrogensulphide, carbon dioxide
B
Methane, oxygen, hydrogensulphide
C
Hydrogensulphide, methane, sulphur dioxide
D
Hydrogensulphide, nitrogen, methane
Answer
Methane, hydrogensulphide, carbon dioxide
Explanation
Solution
The correct option is (A): Methane, hydrogensulphide, carbon dioxide.