smoking exercise pullution strong wind thinkness of air cleaness of nostrol
contaminacion
there's no pullution
pullution
Vehicles release carbon monoxide into the air from the combustion of fuel in their engines. And the amount of such kind of pollution is very great, mainly in big cities.
The air we breathe circulates around the globe, so the air you breathe today might be somewhere in Canada by next week, this is why it pollution in one country affects another country.
Acid rain
people are very careless, these people are changing our environment by smoking it's adding 2 our air it is called pullution an it's not just harm the environment it is harming them as well !
water pullution is when people put trash in the water and it hurts the animals
can air bubbles on the brain kill you
How have humans activities affected the Aral Sea
pullution change the pH of water