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(EARTH SCIENCE WEEK 7-8).docx - Earth Science Week 7-8...

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Earth ScienceWeek 7-8Lesson 13 How PeopleGenerate DifferentTypes of WasteWhat I Know1. D2. D3. D4. B5. A6. D7. B8. B9. B10. A11. B12. C13. A14. D15. CWhat InKinds of Waste1. Biodegradable2. Non-biodegradable3. Solid waste4. Liquid waste5. Gaseous waste6. HazardousWaste Management1. Reduce2. Reuse3. Recycle4. Incineration5. Landfill6. Composting
What’s New1. Composting - is a organic material that can be added to soil in order to help plants grow.2. Landfill - is a site for the disposal of waste materials.3. 3 R’s - the Reduce, Reuse, Recycle elements are referred to as the 3 R’s. Reduce, the best way tomanage waste is to not produce it. Reuse makes the economic and environmental sense toreuse products that takes creativity. And Recycle/Recycling is a series of steps that takes usedmaterials, processes and re-manufactures it and sells it as a new product.4. Biodegradable waste - includes any organic matter in waste which can be broken down intocarbon dioxide, water, methane or simple organic molecules by micro-organisms and otherliving things by composting, aerobic digestion, anaerobic digestion or similar processes.5. Non-biodegradable waste - a kind of substance which cannot be broken down by naturalorganisms and acts as a source of pollution.What’s MoreActivity 1Solid wasteLiquid wasteGaseous wastePaint canScrap metalDiaperDetergentPipe waterSewageWaste waterGrease trapChlorofluorocarbon (CFC)MethaneActivity 21. E2. F3. A4. B5. CActivity 31. Solid waste, Liquid waste, Gaseous waste2. Biodegradable, Non-biodegradable, Hazardous, Non-Hazardous3. Municipal solid waste4. Agricultural solid waste5. Biomedical wasteWhat I Have Learned
A. HazardousB. AgriculturalC. FisheryD. Material Recovery Facility, Compost PitWhat I Can Do1. The advantages of biodegradable materials are: It reduce emission of carbon in the air, itrequires less amount of energy and does not need fossil fuels to be recycled, if biodegradablematerials are used, and there is no need to add more landfills since these materials can beabsorbed by the soil and be converted to compost or humus.The disadvantages of biodegradable materials are: using biodegradable materials will be needing forindustrial composters to turn them into composts and availability of the equipment in some countriescan be a problem. Apart from the cost, not all countries have the proper equipment especially if this isnot the priority of the government. Biodegradable materials should not be mixed with non-biodegradable when thrown in garbage bins. Once these two types are mixed together, these materialsbecome contaminated and cannot be used anymore. Consequently, these contaminated biodegradablematerials will end in landfills and add to the volume of thrash.

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Term
Summer
Professor
sharmaine pauline
Tags
Hazardous waste, Waste, Biodegradable waste

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