Long chimneys in factories are to ________.

make it beautiful

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increase the efficency of factory

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release harmful smoke high in the atmosphere

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reduce the cost of production

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Solution

The correct option is C
release harmful smoke high in the atmosphere

The burning of fuel produces smoke. Smoke contains a few gases and fine dust particles and is often harmful. That is why we have long chimneys in factories. This takes the harmful smoke and gases away from the breathing level of the living organism and releases it high in the atmosphere.

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Similar questions

Long chimneys in factories are to ________.

Q. Give reasons for the following: [5 MARKS]
a) Mountaineers carry cylinders with them while climbing high mountains.
b) We feel suffocated in a closed room where something is burning.
c) Why do factories have long chimneys?

How should chimneys of factories be very tall?

Statement I: Factories should have tall chimneys.

Statement II: Tall chimneys in factories help in releasing harmful smoke high in the atmosphere.

When the top of the chimney of a factory is seen from a point on the roof of a three-storied building of $9 \sqrt{3}$ metre height, the angle of elevation is $30^{\circ}$ . If the distance between the factory and chimney is 30 metres, calculate the height of the chimney.

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