Erosion a process that the Earth uses to loosen rocks and soil and move them from one space to another. Erosion created the landscapes we have today. It is usually millions of years until we see a difference. Contrary to some beliefs, erosion isn't only a process created by the Earth. We, humans, can also cause erosion by farming and mining. Erosion begins with weathering. Weathering is a process where rocks are broken down into smaller pieces. You might think that weathering must be a simple process, because sand gets blown around and gets into your eyes. But wind doesn't do it all. The most powerful force is water. Water (in liquid form) can cause many different kinds of erosion. Streams move tiny rocks every year; the size of the rocks it carries has to do with the strength of the stream.
Not all rocks are affected the same way during erosion. Some larger rocks are cracked, while other, smaller rocks, are moved downstream. Erosion doesn't only effect rocks, it also effects the beaches. The waves carry sand out into the sea, causing shore sizes to constantly decrease. This causes many problems with plant and animal life. Many efforts have been made in attempt to help fix this problem, but nothing has really made a difference.
No comments:
Post a Comment