ENVIROMENTAL PROBLEMS AND  POLLUTION EFFECTS:




Introduccion:

environmental problems caused  by pollution affect both the planet and human health 



Air pollution:

Air pollution is contamination of the indoor or outdoor environment by any chemical, physical or biological agent that modifies the natural characteristics of the atmosphere.

Causes:

car emissions, factories, buring trash

Effects:
Respiratory diseases (asthma, bronchitis)
Global Warning (climate change)
Acid rain.

video:



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