MCQ
Which Of The Following Statement Is Or Incorrect?
  • A
    There are four stages in the development of silk moth.
  • B
    Silk industry begin in China and was left a closely guarded secret for hundreds of years.
  • When Silk fibre is burnt it gives a smell of burning paper.
  • D
    Pupa develop inside cocoon into moth and comes out as an adult silk moth.

Answer

Correct option: C.
When Silk fibre is burnt it gives a smell of burning paper.
Silk is a protein fibre and usually burns readily, not necessarily with a steady flame, and smells like burning hair. The ash is easily crumbled. Silk samples are not as easily extinguished as cotton or linen.

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