Answer: Dental amalgam
Explanation:
Dental amalgam is one of the most versatile restorative materials used in dentistry. It constitutes approximately 75% of all restorative materials used by dentists. It has served as a dental restoration for more than 165 years.
7. C
8. B
9. B
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Answer:
Technology like the Electron microscope has aided us to easily detect microscopic organisms like viruses, bacteria etc
The answer is b, scenario 2.
