Q2 of 35 Page 44

Is cotton cloth biodegradable or non-biodegradable?

Cotton cloth is a biodegradable material. It takes approximately 2-5 months to degrade cotton cloth.

Why plastic is lighter than metal?

Do the biodegradable materials cause environmental pollution? Name two biodegradable products.

What do you understand by 4R principle? Why should we remember this principle?

Which fibre is commonly used for making ropes?

Questions · 35

3. Synthetic Fibres and Plastics

1 2 3 1 2 3 1 2 3 1 2 3 1 2 3 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20