Water pollution is affecting the planet because

because the fishes, plants and all kind of being under the water might die with the polution, and also humans might be affected, because we drink this water.

Water pollution is affecting our planet because without clean water, the plants and animals (including us) will have a hard time surviving. We wont have clean water to drink or bathe in. It can also be poisonous, and can kill us. With polluted  water, our planet, our home, will not survive.