___________causes several diseases in man and animal.

__________may be man made or natural.

Green house gas is 

Eutrophication leads to death of fish due to 

A device used in the chimney to remove solid particles from the gases released into the air

__________is an indication of disturbances to the composition of compound in the atmosphere.

  One of the most polluted river in the world is

____________is derived from the Latin word"polluere"

____________is defined as the release of substances and energy (in excess of permissible limit) as waste products into the environment.

Air pollution causes