Why can’t the pond be polluted?

Water is an important and very necessary substance for all living things that are around us. Living creatures live in the ponds, among them fish, birds, ducks. We rest on the shore, walk, breathe fresh air. We admire the birds and plants surrounding the reservoir. Therefore, ponds and other bodies of water should not be littered with garbage, household and industrial waste. Harmful impurities, substances that enter the water, poison aquatic inhabitants, destroy plants. It is necessary to preserve and protect nature.