‘Vanamahotsav’ is conducted in this month.

This is an eco-friendly fuel.

The cause for ‘eutrophication’

Ozone layer is being destroyed by

Acid rain is due to this

SPM can be reduced by installation of this

This gas is responsible for “Bhopal Gas Tragedy”.

The petrol now we are using ……….. in our cars is free.

Chernobyl disaster happened in ……….. country.

The most polluted river in Hyderabad is