A single drop of water in a water bottle today may have been a drop drunk by dinosaurs, it might have been part of the glaciers at one time, and it could have been in the ocean when Columbus crossed it. Conserving and protecting our water from pollution is vital to us as well as to the environment. Once in the water cycle, pollution can often travel, affecting the entire system. For example pollution can be picked up by rain and carried to a hillside. The pollution will then seep into the ground and soil water or runoff into a stream or lake.
Plants soak up the water from the soil, and animals drink it from the streams.
The pollution can be transferred in the water. One area that often acts as a water cleaner is a wetland. 4-describe how animals have different structures that serve different functions in growth, survival, and reproduction. Relate one way a wetland is beneficial. Identify three animals that live at least part of their live in water.