Which of the following is the source of asbestos? a. Burning of coal c. Cement industry b. bleaching of clothes d. Metallurgical operation
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Explanation:
Asbestos (pronounced: /æsˈbɛstəs/ or /æsˈbɛstɒs/) is a term used to refer to six naturally occurring silicate minerals. All are composed of long and thin fibrous crystals, each fibre being composed of many microscopic 'fibrils' that can be released into the atmosphere by abrasion and other processes. Asbestos is an excellent electrical insulator and is highly heat-resistant, so for many years it was used as a building material.[1] However, it is now a well-known health and safety hazard and the use of asbestos as a building material
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Answer:
c. Cement industry
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