SCIENCE 4 Tell whether they are useful or harmful to the environment. 1. People are burning their garbage. 2. Sell old newspaper to paper mills which can turn them into usable paper again. 3. Avoid buying disposable items. 4. Red tide is affecting the northern coast of the country. 5. Cutting trees. 6. Set up compost pile to compost yard trimmings. 7. Killing animals in the wild. 8. Throwing detergents into the rivers. 9. Recycling of waste materials. 10.Segregating waste materials. Kailangan ko lang po ng sagot ngayon​