A wall cloud is seen over a field in Oklahoma in June 1984. (NOAA Photo Library, NOAA Central Library; OAR/ERL/National Severe Storms Laboratory (NSSL)) Description:These clouds usually appear as a lowering along the rain-free base of a cumulonimbus cloud. They form because of the strong ...
Commercial or industrial waste is a significant portion of solid waste. According to the University of Utah, industries use 4 million pounds of materials in order to provide the average American family with needed products for one year. Much of it is classified as non-hazardous, such as constru...