How is the environment polluted?

The environment is polluted in several ways. For example, smoking, (unnecessary) driving and factoriescause a lot of pollution. Plus, there's acid rain, which has barely a difference from normal rain. You can't tell until you drink and get sick from it. It's formed from all our air pollution, as told above. Next, there's water pollution. It's one of our biggest problems. When you dump trash and waste in a body of water, you're polluting the water. The world is made up of 3% fresh water. 1% of that water is unpolluted. It may sound crazy, but that's what happens when you build a factory next to water. This may also sound weird, but there's noise pollution. If you decide that you want to be the world's loudest person, and you do or trigger something that is really loud, you've just created pollution. It's not nearly as bad as the other ones, but it's not good, either. Lastly, there's land pollution. This is a BIG problem with humans. Every single time you litter, or pour trash on the floor, you're polluting the environment. Landfills are a good example. You're burying waste under the ground, but what for? You're just polluting the Earth even more! Not only does that effect the environment, it kills animals. They dig up the trash, or find it on the ground. If they're hungry, they'll probably try to eat it, choking themselves to do so. Pollution has effected many of us as well as animals, plants, and the Earth itself. Soon the whole world will be filled with pollution, and you'll know when.