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प्रश्न
______ is the strongest natural fibre.
उत्तर
Silk is the strongest natural fibre.
APPEARS IN
संबंधित प्रश्न
The silkworm is (a) a caterpillar, (b) a larva. Choose the correct option
Make sketches of the two stages in the life history of the silk moth which are directly related to the production of silk.
Out of the following, which are the two terms related to silk production?
Sericulture, floriculture, moriculture, apiculture and silviculture
Hints:
(1) Silk production involves cultivation of mulberry leaves and rearing silkworms.
(2) Scientific name of mulberry is Morus alba.
A natural fibre obtained by boiling cocoons is called ______.
The cultivation and production of silk is known as ______.
Peace silk was produced in the year ______.
Write about any three uses of silk.
The term sericulture is used for
State whether the following statements are True or False. If false, correct them.
The rearing of silkworms for obtaining silk is called silviculture.
Some words related to silk are jumbled up. Write them in their correct form.
BELMURRY
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.
- Eggs are warmed to a suitable temperature for the larvae to hatch from eggs.
- Fibres are taken out from the cocoon.
- After 25 to 30 days, the caterpillars stop eating and start spinning cocoons.
- The larvae/caterpillars or silkworms are kept in clean trays along with freshly chopped mulberry leaves.
- Female silk moths lay eggs.
- Cocoons are kept under the sun or boiled in water.
Complete the paragraph related to the life history of the 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 the 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 a reason for your answer.
The production of silk is called ______.
The silk moth feed on ______.
