The ___ in Ganong's potometer marks the progress of transpiration.

air bubble

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stop cock

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reservoir water level

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beaker water level

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Solution

The correct option is A
air bubble

The air bubble in the Ganong's potometer is introduced to mark the progress of transpiration.

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Similar questions

The level of water in a beaker________when a spoon full of sugar/salt is added to it.

Potometers measure the water lost during transpiration.

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