This document discusses land and soil pollution. It outlines various causes of land pollution including deforestation, overuse of pesticides and fertilizers, desertification, mining, waste disposal, and land conversion. Specific causes discussed in more detail include soil pollution from destruction of the top soil layer, inefficient use of land leading to shortage and deforestation, and overcrowded landfills. The effects of land pollution include impacts on climate through loss of forest cover, extinction of species due to habitat loss, bioaccumulation of toxins in the food chain, and reduced biodiversity. Preventative measures mentioned include reducing toxic waste, recycling waste materials, using organic products, growing more trees, and proper waste management.