C. Directions: Answer the following questions, 11. Where does the garbage at your school come from? 12. What three appliances use the most energy in your house? 13. Where does the energy you use come from? 14. Where does your food come from? 15. Whct are the main sources of indoor air pollution?
Share
Answer:
11. It comes from us humans who don't throw the garbages properly 12. Tv 13. Sun, Water 14. Nature 15. It comes from the outside.