Question

1) give 4 charecterstics of synthetic fiber
2) give 2 advantages and 2 disadvantages of using plastic.
3) what is the 4R principle? Give your opinion, how it helps in saving the ennvironment?
4) it is considered that, polythene is less environment friendly. Give 3 reason to support answer
If you answer this, I will follow you (only the answer is appropriate)
the first to answer will be marked as brainiest .

Answer 1

Answer:

1) they absorb less water

they are easily available

they are not costly

they are light in weight

2) Advantages- we can store pickles in plastic vessel. different chemicals are stored in plastic bottles

3) reuse, reduce,

4) yes, plastic is not more environmental friendly because plastic never be rotten. plastic increase pollution.

Answer 2

Q(1) Give 4 characteristics of synthetic fiber

Answer:  • Synthetic fibres are less expensive than natural fibres.

• Synthetic fibres are stronger than natural fibre.

• Synthetic fibres are more durable than natural fibre.

• Synthetic fabrics dry up in less time.

• Synthetic fibres are easy to maintain and wash.

Q(2) Give 2 advantages and 2 disadvantages of using plastic.

Advantages:

• Plastic is inexpensive.
• Plastic is durable.

Disadvantages:

• Plastics take years to decompose.
• Plastics produce harmful gases on burning.

Q(3) What is the 4R principle? Give your opinion, how it helps in saving the environment?

The 4 R principle is reuse, recycle, reduce and reproduce. It is used to recover the products. This principle is being used nowadays and its a step towards the conservation of the environment. This principle recycles waste material. By using this principle, the consumption will be reduced and production will increase. Plastic is the best example of 4 R principle.

Q(4) It is considered that polythene is less environment-friendly. Give 3 reasons to support your answer.

• Polythenes take 400 - 1000 years to decompose. Some types of polythenes are non-degradable as well.
• Polythene releases dangerous gases and affects the environment when they are burnt.
• Polythenes releases toxic chemicals, which can accumulate over other products.