The correct answer is: Both (A) and (B).
Asbestos is a naturally occurring mineral that is found in six different types: chrysotile, amosite, crocidolite, tremolite, actinolite, and anthophyllite. Of these, chrysotile is the most common type of asbestos and is also the least harmful. The other five types of asbestos are more harmful and are known to cause cancer.
Asbestos is a fibrous mineral that is often used in insulation and fireproofing materials. It is also used in some building materials, such as roofing shingles and cement pipes. Asbestos fibers are very small and can easily become airborne. When asbestos fibers are inhaled, they can cause a number of health problems, including asbestosis, mesothelioma, and lung cancer.
Asbestos was once widely used in a variety of products, but it is now known to be a dangerous carcinogen. As a result, the use of asbestos has been banned in many countries. However, asbestos is still found in some older buildings and products. If you are concerned about asbestos exposure, you should have your home or workplace inspected by a qualified professional.
Here is a brief explanation of each option:
- Option A: Asbestos is a fibrous variety of serpentine. This is true. Asbestos is a naturally occurring mineral that is found in six different types: chrysotile, amosite, crocidolite, tremolite, actinolite, and anthophyllite. Of these, chrysotile is the most common type of asbestos and is also the least harmful. The other five types of asbestos are more harmful and are known to cause cancer.
- Option B: Asbestos has high fire resistance. This is also true. Asbestos is a very good insulator and is also resistant to heat and fire. This is why it was once widely used in insulation and fireproofing materials.
- Option C: Both (A) and (B). This is the correct answer. Asbestos is a fibrous variety of serpentine and it has high fire resistance.
- Option D: None of the above. This is not the correct answer. Asbestos is a fibrous variety of serpentine and it has high fire resistance.