MCQOPTIONS
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MCQOPTIONS
| 1. |
What causes the mottling of the dental enamel? |
| A. | High levels of chlorine in the water |
| B. | High levels of nitrate in the water |
| C. | High levels of floride in the water |
| D. | High levels of calcium in the water |
| Answer» D. High levels of calcium in the water | |