A nail was driven into the trunk of a tree at a point 1.5 meters above the soil level. After three years, the nail will:

Options

A. remain where it was
B. move side ways
C. move up
D. move down

Explanation

To solve the question regarding the nail driven into the trunk of a tree 1.5 meters above the soil level, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding Tree Growth**: Trees grow primarily from their tips, known as the apical meristem, which is located at the top of the tree (the shoot apex). This is where new growth occurs.

2. **Location of the Nail**: The nail is inserted 1.5 meters above the soil level. This point is on the trunk of the tree, which does not have apical meristematic tissue.

3. **Growth of the Tree**: Over time, as the tree grows, it does not push the trunk upward from the point where the nail is located. Instead, the growth occurs at the top of the tree. Therefore, the height of the trunk above the nail increases, but the position of the nail itself remains unchanged.

4. **Conclusion**: After three years, the nail will remain at the same height of 1.5 meters above the soil level, as there is no upward growth in the region where the nail is inserted.

### Final Answer:
The nail will remain at the same position, 1.5 meters above the soil level.

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