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12 questions



We should always remember the 4R principles, __________, ___...
20 days ago Answer(s): 1 Votes: 3

We should always remember the 4R principles, __________, ___________, _________ and _________



Fire-proof plastics have a coating of _______ plastic on the...
20 days ago Answer(s): 1 Votes: 3

fire-proof plastics have a coating of _______ plastic on them to make them flame resistant



___________ is a special plastic on which oil and water do n...
20 days ago Answer(s): 1 Votes: 3

___________ is a special plastic on which oil and water do not stick



Plastics are generally _______ than metals
20 days ago Answer(s): 1 Votes: 2

plastics are generally _______ than metals



Plastic so not react with _______ and ______
20 days ago Answer(s): 1 Votes: 3

Plastic so not react with _______ and ______



Irons rust when exposed to ______ and ______
20 days ago Answer(s): 1 Votes: 2

Irons rust when exposed to ______ and ______



Polythene which is used to make polythene bags is an example...
20 days ago Answer(s): 1 Votes: 3

Polythene which is used to make polythene bags is an example of a ______



Synthetic fabrics soak ________ water than the natural fabri...
20 days ago Answer(s): 1 Votes: 2

Synthetic fabrics soak ________ water than the natural fabrics and take __________ time to dry (more/less)



The polymer polyester is made up of repeating units of _____...
20 days ago Answer(s): 1 Votes: 2

The polymer polyester is made up of repeating units of ________



Silk fibre is originated from _________ whereas artificial s...
20 days ago Answer(s): 1 Votes: 2

Silk fibre is originated from _________ whereas artificial silk is obtained by chemical treatment of ________