Littering- When people dump trash and other items like plastic and garbage into the ponds and rivers it flows into the ocean causing marine life to get sick
Ballast water dumping- This is when ships dump out the water from the ballast tank located at the bottom of the ship that keeps it balanced into the river.
Plastic water bottles contain harsh chemicals that could harm plants and wildlife, for instance, some of the chemicals found in plastic are, flame retardants, BPA( Bisphenol-A), and Phthalates. It can also harm us because these chemicals are usually inhaled by marine life and can be consumed by us causing us to become sick. Deforestation also causes water pollution because the trees soak up the polluted water and purify it. Obviously, it won’t soak up all of it, but it plays a major role in cutting water pollution. So if the trees are gone what is going to help purify the water?
Don't pour, Cleaning supplies, medication, grease, fat, avoid using the garbage disposal, don't overuse detergent, and avoid pesticides, herbicides and fertilizer because when it rains it gets washed into the water.