a. same a. gas to liquid b. liquid to gas c. solid to solid liquid to solid
19. The parts of homogeneous mixture are throughout b. different C. scattered d. neutral 20. Which of the following is NOT a property of a mixture? a. the components can be separated c. liquid materials can be mixed with lo. b. solid materials can be mixed with solid materials d. only one substance is present in the
21. Why do people need to recycle? a. Recycling reduces unused materials c. Recycling makes people think creatively b. Recycling makes products usable again d. All of the above
22. Which of the following is a non-biodegradable material? a. glass b. fruits c. cotton clothes d. leaves
23. Which of the following is a biodegradable material? a. face shield b. banana peel d. glass 24. Anything that harms the quality of air, water and soil is a. pollutant b.good d. waste 25. The garbage in your barangay increases every year. Tons of wastes, biodegradable and nonbiodegradable are taken from the shore. What can you infer from this situation? a. The shore is no longer clean c. People cannot enjoy swimming at the beach b. This will affect the fish living in the sea d. All of the above c. hair C. safe​