Commercial cork is obtained from

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(B) The correct answer is $(B)$.Commercial cork is obtained from the bark of the Oak tree,specifically $(Quercus\ suber)$.The cavities of the cork cel

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Oak $(Quercus\ suber)$

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(B) The correct answer is $(B)$.Commercial cork is obtained from the bark of the Oak tree,specifically $(Quercus\ suber)$.The cavities of the cork cells are filled with air,which makes the cork lightweight and provides excellent thermal insulating properties.This material is widely used for making bottle stoppers due to its elasticity and impermeability to liquids and gases.

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