Teaching BPSC बिहार मध्य विद्यालय (6 to 8) शिक्षक भर्ती 4.0 Mock Test General Knowledge Ecology and Environment Environmental pollution
According to the Environmental Protection Agency (EPA), which one of the following is the largest source of sulphur dioxide emissions?
1
Power plants using fossil fuels
2
Ships using fossil fuels
3
Extraction of metals from ores
4
More than one of the above
5
None of the above