Contact dermatitis is one of the most common causes of rashes. Contact rashes occur when the skin comes into direct contact with a foreign substance that causes an adverse reaction, leading to a rash. The resulting rash may be itchy, red, or inflamed. Possible causes of contact dermatitis include:
Tear it down Build it up. Destructive Processes are when things happen to the earth that destroy or break down part of it. One example of a destructive process is a river wearing away the rocks and dirt to form a canyon. In the story, an example of a destructive process was the erosion that carried the dirt and the minerals from rocks down into the cave. Weathering is the process that breaks rocks down into pieces called sediment.
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.ind erosion is much more severe in arid areas and during times of drought. For example, in the Great Plains, it is estimated that soil loss due to wind erosion can be as much as 6100 times greater in drought years than in wet years.