The document discusses how human activities can negatively impact soil. It explains that farming can harm soil through excessive use of fertilizers and overgrazing, which can lead to desertification. Construction and development removes soil and can cause pollution through soil runoff. Mining activities like strip mining and open pit mining result in soil loss and degradation. However, conservation efforts like crop rotation, conservation tillage, terraces, and windbreaks can help conserve soil and reduce erosion.

2. Human Activities Affect Soil