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प्रश्न
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.
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उत्तर
e. Female silk moths lay eggs.
a. Eggs are warmed to a suitable temperature for the larvae to hatch from eggs.
d. The larvae/caterpillars or silkworms are kept in clean trays along with freshly chopped mulberry leaves.
c. After 25 to 30 days, the caterpillars stop eating and start spinning cocoons.
f. Cocoons are kept under the sun or boiled in water.
b. Fibres are taken out from the cocoon.
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संबंधित प्रश्न
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.
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 ______.
______ is the strongest natural fibre.
HOTS
Silk fiber is used to manufacture parachute. Why?
Reeling of silk is ______.
Some words related to silk are jumbled up. Write them in their correct form.
BELMURRY
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)___.
______ are boiled to get the silk.
Silk is the secretion of ______.
