the expansion of deserts into once populated areas is known as . group of answer choices sahel formation desertification rain shadow effects deflation desert migration

Desertification is the expansion of deserts into previously inhabited areas. answer options group desertification of the Sahel rain shadow effects Desert migration due to deflation.Desertification is a type of land degradation in drylands in which biological production is lost owing to natural processes or generated by human activity, causing productive areas to become progressively arid. It is the spread of arid areas induced by a range of factors, including climate change and soil overexploitation as a result of human activities. Deserts have formed naturally throughout geological history. Many scientific studies have been conducted in recent years to investigate the potential effects of human activity, poor land management, deforestation, and climate change on desertification. However, the basic assumption that desertification involves the physical extension of deserts has been questioned as the concept has evolved.Learn more about deflation herehttps://brainly.com/question/14868990#SPJ4