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16. Environmental Issues
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Q7 of 55 Page 116

What is the raw material for polyblend?

The raw material for polyblend is Polythene. Polyblends are the natural man-made fibres which are made by the mixture of two or more polymers.


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5

What is cultural eutrophication?

6

List any two adverse effects of particulate matter on human health.

8

Blends of polyblend and bitumen, when used, help to increase road life by a factor of three. What is the reason?

9

Mention any two examples of plants used as wind breakers in the agricultural fields.

Questions · 55
16. Environmental Issues
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