Wind and rain cause EROSION, which is the process of wearing away of the Earth's surface by natural forces such as wind, rain, and ice. EROSION can occur on land or in water, and it is a natural process that has been occurring since the Earth was formed. EROSION can be caused by both natural and human activities, such as deforestation, construction, and farming. EROSION can also be accelerated by climate change, which can lead to more extreme weather events such as heavy rain and strong winds.