Activity 2 Directions: Put a ✅ opposite the activities listed in the table if it is useful or good to the environment. Put an X if it is harmful to the environment. Answer the next two columns with the choices given in the parenthesis. Activities Answer Possible change in material (Physical or Chemical) Process undergone to change the material physically (Cutting, bending, pressing, hammering) 1. Throwing of garbage to the river 2. Cleaning esteros and canals. 3. Using animal waste as fertilizer Science 4 Quarter ​