4. Has been introduced to lessen piles and piles of trash. To use old 0materials again. A. Dumping B. Recycling C. Burning 5. Plastic, polystyrene / Styrofoam, glass, cans are examples of: A. Biodegradable B. Non-biodegradable C. Hazardous wastes 6. Paper, kitchen wastes, yard cuttings are examples of A. Biodegradable B. Non-biodegradable C. Hazardous wastes 7. Chemicals, used batteries, expired medicines are examples of A. Biodegradable B. Non-biodegradable C. Hazardous wastes 8. This is done when you make a compost pit where you place organic wastes and leave it to rot. The soil bacteria aids in transforming your organic wastes into organic or natural fertilizers. A. Composting B. Recycling C. Burning 9. The following are importance in recycling except: A. Fewer new materials will be made. B. Less oil will be used to run electrical companies. C. Tourist will come to Baguio for visit. 10. After eating banana, where do you suppose to put your peelings? A. Biodegradable trash bin B. Non-biodegradable trash bin C. Hazardous wastes trash bin