Ozone in the Upper Atmosphere Makes Life on Earth Possible [edit]. Ozone is a molecule composed of three oxygen atoms, (O 3). Ozone in the upper atmosphere absorbs high energy ultraviolet radiation (UV) coming from the Sun. This protects living things on Earth's surface from the Sun's most harmful rays.
In earth science, erosion is the action of exogenic processes (such as water flow or wind) which remove soil and rock from one location on the Earth's crust, then transport it to another location where it is deposited. Eroded sediment may be transported just a few millimetres, or for thousands of kilometres.
Erosion is a natural process where wind and water transport soil and sand, slowly redefining the landscape over hundreds or thousands of years. However, some human activities can increase natural erosion rates by 10 to 15 times, leading to massive changes in an ecosystem over a relatively short period. Monitoring these changes is important, because if left unchecked, they can lead to significant environmental damage and even affect our food supply.