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Assertion : Cork prevents the loss of wa...

Assertion : Cork prevents the loss of water by evaporation.
Reason : Cork cells contain tannins. Reason

A

If both assertion and reason are true and reason is the correct explanation of assertion

B

If both assertion and reason are true but reason is not the correct explanation of assertion

C

If assertion is true but reason is false

D

If both assertion and reason are false.

Text Solution

Verified by Experts

The correct Answer is:
B
Cork consists of dead and compactly arranged reciangular cells that possess suberised cell walls. The cork çells contain tannins. Hence, they appear brown or dark brown in colour. The cork celis of soome plants are filled with air. Cork prevents the loss of water by evaporation. It also protects the interior against entry of harmful micro-organisms, mechanical injury and extremes of temperature. Cork is light, compressible, nonreactive and sufficiently resistant to fire. It is used as stopper for bottles, shack absorption and insulation.
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