Identify which of these following minerals is not needed by our body?

Options

A. Calcium
B. Iron
C. Mercury
D. Phosphorus

Answer

To identify which mineral is not needed by our body from the given options, we can analyze each mineral one by one:

1. **Calcium**:
- Calcium is essential for our body as it helps in the development and maintenance of strong bones and teeth. It is also important for muscle function, nerve signaling, and blood clotting.
- Conclusion: Calcium is needed by our body.

2. **Iron**:
- Iron is crucial for the production of hemoglobin, which is a component of red blood cells (RBCs) that carries oxygen throughout the body. A deficiency in iron can lead to anemia and reduced oxygen supply to tissues.
- Conclusion: Iron is needed by our body.

3. **Mercury**:
- Mercury is a toxic heavy metal and has no beneficial role in the human body. In fact, its presence can lead to serious health issues, including damage to the nervous system and other vital organs.
- Conclusion: Mercury is not needed by our body.

4. **Phosphorus**:
- Phosphorus is important for the formation of bones and teeth, and it plays a role in energy production and storage. It is also involved in the formation of DNA and RNA.
- Conclusion: Phosphorus is needed by our body.

After analyzing all the options, we find that the mineral that is not needed by our body is **Mercury**.