3. How to prevent the harmful effects of decaying materials? A. Disposed your garbage properly. B. Keep the left over foods in the refrigerator. C. Segregate the decaying and non-decaying materials. D. All of the above 4. Ana is assigned to segregate waste materials at home. How will she do it? A. According to its ability to float and sink B. According to its color C. Into decaying and non-decaying groups D. Into small and big groups. 5. If you are going to dispose waste materials commonly found at home, what are you going to do with the decaying materials? A. Keep them in the cabinet and use them again B. Make a compost C. Mix them with the non-decaying D. Throw them in the river​