pollution of air and water

1
Pollution of Air and Water Air and water are two of the most important natural resources . Air is necessary for all living organisms for their respiratory process . A healthy human breathes 22000 times a day and takes about 16 kg of air. Water is important for plants also . It helps in the germination of seeds , in photosynthesis , transport of nutrients etc . So, it is very important for us to protect them from getting polluted.

Upload: nishat-ahtesham

Post on 24-Jul-2015

46 views

Category:

Documents


4 download

TRANSCRIPT

Page 1: Pollution of air and water

Pollution of Air and Water

Air and water are two of the most important natural resources . Air is necessary for all

living organisms for their respiratory process . A healthy human breathes 22000 times a day and takes about 16 kg of air.Water is important for plants also . It helps

in the germination of seeds , in photosynthesis , transport of nutrients etc .

So, it is very important for us to protect them from getting polluted.