Neelima was concerned about killing the larvae by boiling the cocoon, while obtaining silk. Justify this process to Neelima by choosing the correct reasons from the given options.

To remove dirt and grease

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To soften the cocoon

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To obtain silk fabric

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To strengthen the silk

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Solution

The correct option is B To soften the cocoon
The cocoons are boiled while obtaining the silk. This is done to kill the larvae before it comes out of the cocoon to obtain continuous silk strand. Boiling also softens the gums that binds the silk fibre to the cocoons.

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Similar questions

Choose the option that correctly arranges the statements given below in order with respect to silk worm rearing.

I.Eggs are bought and incubated under controlled conditions

II. Silk cocoons are boiled

III. Silk fibres are extracted

IV. Egg hatch into larvae

V. Larvae weave a cocoon around themselves to metamorphose

VI. Larvae are fed mulberry leaves making them grow

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