by abusing the nature...and by the polution..
oink
Dirty Surroundings
Dirty surroundings can be caused by a person not cleaning their home properly. Other causes are poor drainage systems, illegal dumping, and littering.
Spread of diseases, climate change, environmental change, destruction of the ozone layer, and others.
Ecology
because when it evaporates it takes all the heat in the surroundings with it leaving a cooling effect on the surroundings around it.
Because we get dirty.
because it makes you dirty
make stuff dirty
If it is dirty enough it will effect performance and fuel mileage.
Also known as the cage effect, it describes how properties of a molecule are affected by its surroundings.
environment
its dirty!!