Activity 1. Analyze each item carefully. Draw a happy face if the situation shows a good effect of soil erosion and weathering and sad face if NOT. Draw your answers on a separate sheet of paper. 1. shaping of landforms 2. deposition of mine tailings 3. formation of soil 4. removal of soil 5. clogging of irrigation canals 6. decrease in food production 7. pollution of water 8. inability of soil to hold water 9. loss of lives and damage to properties 10. large masses becoming wonders of nature​