By throwing litter onto the floor
People pollute the earth by littering and being dirty and don't feel like going to the trash
By not caring about the petrol that leeks out of the car if is dammaged
People pollute the earth by not recycling and not being aware of the harmful things it can do. You live on it too just like everyone else and by doing something like not doing the three R's then it can harm our earth.
People pollute the earth by being stupid
People pollute the earth by dropping out of school
We do it every single day, be we can help by turning of lights and saving water and picking up our crap, don't throw it on the road.