Question

ਸ਼ਹਿਰ ਦੇ ਮੇਅਰ ਨੂੰ ਭੈੜੀਆਂ ਸੜਕਾਂ ਕਾਰਨ ਹੋ ਰਹੀਆਂ ਦੁਰਘਟਨਾਵਾਂ ਬਾਰੇ ਪੱਤਰ ਲਿਖੋ​

Answer 1

Explanation:

• There are some fibres that are prepared by man by using chemicals. These are called synthetic fibres. These are made of small units that join together to form long chains. Examples of synthetic fibres are rayon, nylon, polyester, acrylic, etc.