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Subjects
Science State Board
Class 7
Polymer Chemistry
Plastics
6.
Methods of disposing plastics
Exercise condition:
4
m.
Choose the correct answer for the following questions:
1
.
Microorganisms degrade the__________ plastics into carbon dioxide or methane, water and biomass under specific conditions.
Biodegradable
Metals
2
.
The chemical composition of soft glass is __________.
Attraction
\(Na_2O.CaO.6SiO_2\)
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