Is a form of agriculture, used especially in tropical Africa, in which an area or ground is cleared of vegetation and cultivated for a several years and then abandoned for a new area until its fertility has been naturally restored.
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Mantle plumes that form hotspots are thought to be relatively stationary whereas the overlying tectonic plates typically are not. Thus, as a plate moves over the location of a plume eruption, it carries successively older volcanoes with it.
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B. Endospores are more resistant to dry conditions and are more efficient at producing ATP than vegetative cells.
D. Endospores are more resistant to dry conditions and are more resistant to environmental toxins than vegetative cells.
