हिंदी

Which of the following is not a type of silk? - Science

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प्रश्न

Which of the following is not a type of silk?

विकल्प

  • Mulberry silk

  • Tassar silk

  • Mooga silk

  • Moth silk

MCQ
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उत्तर

Moth silk

Explanation:

Mulberry silk, tassar silk, mooga silk and eri silk are different types of silk produced from cocoons of different types of silk moths. Moth silk is not a type of silk.

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Animal Fibre: Silk
  क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
अध्याय 3: Fibre to Fabric - MULTIPLE CHOICE QUESTIONS [पृष्ठ १५]

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एनसीईआरटी एक्झांप्लर Science [English] Class 7
अध्याय 3 Fibre to Fabric
MULTIPLE CHOICE QUESTIONS | Q 2. | पृष्ठ १५

संबंधित प्रश्न

Match the words of Column I with those given in Column II:

Column I Column II
Scouring Yields silk fibres
Mulberry leaves Wool yielding animal
Yak Food of silk worm
Cocoon Reeling
  Cleaning sheared skin

A natural fibre obtained by boiling cocoons is called ______.


The cultivation and production of silk is known as ______.


Write about Ahimsa Silk.


Some words related to silk are jumbled up. Write them in their correct form.

RINGLEE


Steps for the production of silk are given below in a jumbled order. Arrange them in their proper sequence.

  1. Eggs are warmed to a suitable temperature for the larvae to hatch from eggs.
  2. Fibres are taken out from the cocoon.
  3. After 25 to 30 days, the caterpillars stop eating and start spinning cocoons.
  4. The larvae/caterpillars or silkworms are kept in clean trays along with freshly chopped mulberry leaves.
  5. Female silk moths lay eggs.
  6. Cocoons are kept under the sun or boiled in water.

Complete the paragraph related to the life history of silk moth by filling in the blanks.

The ___(a)___ silk moth lays ___(b)___, from which hatch ___(c)___ called ___(d)___ or ___(e)___. They grow in size and when the caterpillar is ready to enter the next stage of its life history called ___(f)___, it first weaves a covering to hold itself, which is known as ___(g)___.


Paheli went to the market to buy sarees for her mother. She took out a thread from the edge of the two sarees shown by the shopkeeper and burnt them. One thread burnt with a smell of burning hair and the other burnt with the smell of burning paper. Which thread is from a pure cotton saree and which one from a pure silk saree? Give reason for your answer.


India stands ______ in silk production in the world.


______ are boiled to get the silk.


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