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Answers
Q.6 wool is used in making sweaters and blankets
Q.10 plastic in spite of being a wonderful material its usage is discarded because it is harmful to environment as it do not decompose and It is not a biodegradable material
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Answer:6. Acrylic fiber is used to make a sweater and blankets.
7. A thermoplastic is any plastic material which melts into a soft, pliable form above a certain temperature and solidifies upon cooling. examples of thermoplastics include acrylic, polyester, polypropylene, polystyrene, nylon and Teflon.
8. jug, bucket , comb, pen, and toys.
9. wool cotton are Natural fibres and rayon polyester are synthetic fibres.
10. Plastic waste is fast becoming a widely recognised problem. While it is an important material for our economy, providing multiple benefits to modern day living, plastic can take thousands of years to biodegrade. It takes up valuable space in landfill sites and is polluting the natural environment, having a significant impact on our oceans.
While getting rid of plastic waste is the primary environmental problem, the production process is a leading cause of carbon emissions contributing to global warming. It takes a lot of energy and resources to make plastic, with more than 90% being produced from fossil fuel resources. Experts believe that if current trends continue, in 30 years’ time 20% of global oil consumption and 15% of global carbon emissions will be associated with plastic production. Creating bottled water takes 2000 times the energy than it does to produce tap water!
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