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Cork is used for insulation and acts as shock absorber because

1. It is porous
2. It is very hard
3. It is light and does not catch fire easily
4. The cells of cork are living

Correct answer: It is porous

Solution

Cork has many tiny pores filled with air. Air is a poor conductor of heat and the porous structure also helps absorb shocks, so cork works well as an insulator and shock absorber.

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