Explain deforestation, desertification, and urbanization.

Deforestation is the permanent removal of trees to make room for something besides forest. This can include clearing the land for agriculture or grazing, or using the timber for fuel, construction or manufacturing. Forests cover more than 30% of the Earth's land surface, according to the World Wildlife Fund

Desertification is a type of land degradation in drylands in which biological productivity is lost due to natural processes or induced by human activities whereby fertile areas become increasingly more arid.

Urbanization refers to the population shift from rural areas to urban areas, the decrease in the proportion of people living in rural areas, and the ways in which each society adapts to this change.