Teaching BPSC बिहार प्राथमिक (1 to 5) शिक्षक भर्ती 4.0 Mock Test General Knowledge Ecology and Environment Environmental pollution
'Fly Ash' is the waste generated by:
1
Hydropower plant
2
Thermal power plant
3
Geothermal plant
4
More than one of the above
5
None of the above