‘Avoid plastics as far as possible’. Comment on this advice.
Plastics are harmful for our environment. Plastics are non- biodegradable. It add pollution to the environment. They cannot be burnt because, when they burnt they release poisonous gases. Some of the plastics cannot be recycled, so they cannot be used again and thus cannot be finally disposed off. They thus, should be avoided as far as possible.
Give examples to show that plastics are noncorrosive in nature.
Should the handle and bristles of a tooth brush be made of the same material? Explain your answer.
Rana wants to buy shirts for summer. Should he buy cotton shirts or
shirts made from synthetic material? Advise Rana, giving your reason.
Match the following of column I correctly with the phrases given in column II:
| A. Polyester | (i) Prepared by using wood pulp |
| B. Teflon | (ii) Used for making parachutes and stockings |
| C. Rayon | (iii) Used to make non-stick cookwares |
| D. Rayon | (iv) Fabrics do not wrinkle easily |
