презентация ученика 8 кл. по экологическим проблемам.
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From Ahmetshin Ilya to Natalya Petrovna. RECYCLING MATERIALS 8 ‘’c’’ classСлайд 2
Recycling processing used unwanted waste into usable products. Ordinary components of modern waste are : Glass, Plastic, Metal, Paper- types of recycling materiales.
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Metal For example: Tin cans are made from 95% steel and only 5% tin. After recycle 90% steel go to manufactured new tins. Alluminium or nickilium after tins may give new life in Airplane or car.
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Global recycling of different metals in over the world. In 1943 production of alluminium was 2000 kilo/year.
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Glass. Glass after recycle loss his firster quality. But saldom glass is recycling. This baige mean: “You can recycle it.”
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Plastic Plastic is could recycling 2-3 time.It used for bottles and cans. This material is most divelop and most danger.
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https://ru.wikipedia.org Internet resources: 09.02.2015 By Microsoft PowerPoint http://www.google .translate .ru/ The End
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