In which of the following process the farmers cut down the trees of the forest and burn the plant remains?

What are wastes from homes, hospitals, offices, schools, stores, etc., that are collected and disposed of by the municip…

Which of the following is the consequence of deforestation?

<strong>In which category of wastes will you include the non-functioning discarded</strong><ol><li&…

List at least three gaseous air pollutants that are emitted from automobiles and industries.</h2></div>

Ozone layer is disturbed by</h2></div>

What amount of BOD indicates high water pollution?

The major source of BOD in the river Ganga is </h2></div>