"Human pollution is effecting the ocean more than anything. Each year, tons of plastic were dumped into the ocean, which both made parts of the ocean toxic, and made sea animals' lives hard. They might mistake small plastic with food, and they might play with plastic and end up stuck in the garbage. Each year, millions of animals are killed and millions more are injured. If plastic ends up in animals' bodies, the top of the foodchain, us, will end up eating them ourselves."