Science

Rise in the temperature of rivers and lakes that are harmful to the life

Is like poison to the plants and animals that live in our waterways.

In the water especially nitrogen and phosphorus, can cause growth of algae

When water runs over these areas it picks up some dirt

They come from human and animal waste. Can infect humans and animals if they eat or drink them

Has trees and shrubs growing in it

Usually covered with moss. When the plants die layers are built on the top of each other forming peat

Too wet for trees and shrubs.Grassy plants like cattails and reeds grow in it.

Are chemicals intended to kill insects and other organisms that damage crops

The addition of any substance that has a negative effect on water or the living things that depend on the water