Complete the sentences pollution means environment means

Этот ответ в одном: The environment is full of debris in ponds, animal litter hurts and kills them, breathe smoke and in the water there is waste. How to feel sorry for them, and also of terrestrial animals, not just water, and it's bad! We have to clean the world from all this, that all the animals were not included in the Red Book of rare and will not be, they will disappear, if we sit idly by!