Mainly fossil fuels, chemicals, etc. The human waste that we leave behind.
There's also, of course, the natural side of "dirty" as in bacteria, poo, animal life cycle, etc.
Smoking makes your lungs dirty.
Because the mud in the water makes it dirty.
If the hamsters feet are dirty when it gets on it.
the soil
because of the garbage we throw in the water and animals also poo in it.
a dirty martini will have a splash of olive juice to make it cloudy
because it makes you dirty
Smoke damage
No all that does is make the dirty water salty.
you can save alot of money about 5 pound a month it also saves the enviroument
India is not a dirty place. only people liter and when every one liters it makes it dirty. its just like United States of America
It makes your lungs dirty and u can have cancer