Volcano of classifying magmatic volcanoes is by their frequency of eruption, with those that erupt regularly called active, those that have erupted in historical times but are now quiet called dormant or inactive, and those that have not erupted in historical times called extinct. However, these popular classifications—extinct in particular—are practically meaningless to scientists. They use classifications which refer to a particular volcano's formative and eruptive processes and resulting shapes. There is no consensus among volcanologists on how to define an "active" volcano. The lifespan of a volcano can vary from months to several million years, making such a distinction sometimes
Chaparral Prairie State Nature Preserve Chaparral Prairie State Nature Preserve Chaparral Prairie State Nature Preserve is a nature preserve located in Adams County, Ohio, United States, near the city of West Union. The prairie is a remnant of what was once a larger ecosystem. These grassland openings were probably created by the extinct megafauna, such as mammoths and mastodons, that were once found in the area. Native American fires may have also played a role in maintaining this landscape. In modern times the prairie species found refuge on the dry, rocky openings in this part of the state. Today, controlled burns are used at Chaparral