Teaching BPSC बिहार माध्यमिक TGT (9 to 10) शिक्षक भर्ती 4.0 Mock Test General Knowledge Ecology and Environment Biodiversity
In which one of the following, methanogens, i.e methane producing bacteria are NOT present?
1
Rumen of cattle
2
Aerobic environment
3
Anaerobic sludge
4
More than one of the above
5
None of the above