There are several answers to that.
There can be several answers to your question. It depends on where the water is. If you set a glass of water out on your kitchen, then it could get contaminated by a few things. If it was sitting outside on the ground, then there are other factors to consider.
It doesn't, well not by anything that does a good job at it.
Everything on the planet "breathes" at least a little, even metal will oxidize with the oxygen in the air. So technically the air gets cleaned by interacting with the surface of the planet, and everything on it.
But more to the point, trees filter out CO2 very slowly, they store the carbon and release the oxygen. The soil also absorbs particulate and carbon compounds from the air, either though pressure, humidity, or gravitational means (as well as many other ways).
Most though its us, breathing the air in and out every day humans and any other large animals which have lungs are filtering out the junk in the atmosphere. Kind of makes me want to buy an electric bike and a solar panel.
It would become polluted and it's inheritance would become sick from dirty air
It can't transfer heat as efficiently when the exchanger is dirty.
The air would be polluted and everyone will fall sick
No. A dirty cabin air filter would restrict the air flow from the heating, air conditioning and ventilation systems.
you would smell very dirty air that would mostly give you the plaque
not necesarily but it definitely will affect the power... if its dirty just change it they don't cost very much
Water or air dirty with gases or chemicals is polluted water or air.
If they are dirty, yes.
No, it causes a restricted air flow, causing poor performance and fuel economy.
why would you ask that... it's because we need to be ablt to breath. if we had to much moister in the air you would drown. If it is dirty than you will die.
Yes it does the proper air flow that the engine requires is slowed from a dirty air filter
around 1945-1950. It also may have been derived by Napoleon Bonaparte in a speech about Spain.