In chulhas, gaps are left between the logs:

to decrease the ignition temperature of the fuel

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to allow the air to enter and facilitate fuel burning

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to cut off the supply of air

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all of these

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Solution

The correct option is C to allow the air to enter and facilitate fuel burning
It is important to keep gaps between the logs in chulhas to allow the air to enter and facilitate fuel burning.

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In chulhas, gaps are left between the logs:

The correct option is C to allow the air to enter and facilitate fuel burningIt is important to keep gaps between the logs in chulhas to allow the air to enter and facilitate fuel burning.

The correct option is C to allow the air to enter and facilitate fuel burning
It is important to keep gaps between the logs in chulhas to allow the air to enter and facilitate fuel burning.