A) Algal component of a lichen
B) Blue-green algae
C) Green sulphur bacteria
D) Spirochaete
Correct Answer: C
Solution :
Green sulphur bacteria uses \[{{H}_{2}}S\] or other reduced organic and inorganic substances. No utilization of \[{{H}_{2}}O\] occurs in this bacteria hence there is no evolution of\[{{O}_{2}}\].
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