Question

Pollution from animal excreta and organic waste from the kitchen can be most profitably minimized by ______.

पर्याय

• Storing them in underground storage tanks

• Using them for producing biogas

• Dumbing them in the river

• Using them directly as biofertilizers

Answer 1

Pollution from animal excreta and organic waste from the kitchen can be most profitably minimized by using them for producing biogas.