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Presence of water amount in enamel is -...

Presence of water amount in enamel is -

A

`90-92%`

B

`75-80%`

C

`40-50%`

D

`~~3%`

Text Solution

AI Generated Solution

The correct Answer is:
**Step-by-Step Solution:** 1. **Understanding Enamel**: Enamel is the outermost layer of human teeth and is known to be the hardest tissue in the human body. It serves to protect the underlying dentine. 2. **Characteristics of Hard Tissues**: Generally, the harder a tissue is, the less water it tends to contain. This is because water is typically found in higher amounts in softer tissues. 3. **Analyzing the Options**: The question provides four options regarding the percentage of water present in enamel: - Option A: 92% - Option B: (not specified in the transcript) - Option C: (not specified in the transcript) - Option D: Approximately 3% 4. **Evaluating the Options**: - **Option A (92%)**: This percentage is too high for a hard tissue like enamel. If enamel contained this much water, it would not be classified as the hardest tissue. - **Option B**: Not specified, but likely also incorrect based on the context. - **Option C (40-50%)**: This range is also too high for enamel, as it would not be able to maintain its hardness. - **Option D (Approximately 3%)**: This option aligns with the characteristics of enamel as a hard tissue, which typically contains very little water. 5. **Conclusion**: Based on the analysis, the correct answer is that the presence of water amount in enamel is approximately 3%. **Final Answer**: Approximately 3% water is present in enamel. ---
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