III. Direction: Identify the following changes that will happen in the materials in each activity or situation. Classify whether they are useful or harmful in the environment. Write your answer in the correct box. Number 1 was done for you. 1. molding a clay into pot 6. Weaving pinya leaves 2. deforestation 7. Basket made of straw 3. cutting old trees and replace new one 8. Coal mining 4. making plastic pots for gardening plants 9. Using chemicals and pesticides in 5. burning of plastics to lessen garbage elephants 10. Collecting ivory through killing USEFUL HARMFUL 1. molding a clay into pot insmo eu sou an nold on​