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Question
Asbestos is:
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A.
A corrugated sheet used for roofing.
B.
An incombustible fireproof material.
C.
An inorganic substance.
D.
All the above.
Answer ( Option D)

All the above.

Solution

Asbestos refers to naturally occurring fibrous minerals that have the ability to resist heat, fire and electricity.
Note: The chemical formula of asbestos is Mg3Si2O5(OH)4. So it is inorganic.
• Asbestos is made up of microscopic fibres that can easily become airborne and inhaled. These fibres easily cling to tissues of the lungs and causes respiratory diseases.
• Asbestos is best known for causing mesothelioma, a rare and deadly cancer.

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