Which would do maximum harm to tree

Options

A. Loss of half of its leaves
B. Loss of half of its branches
C. Loss of all of its leaves
D. Loss of all its bark

Answer

**Step-by-Step Solution:**

1. **Understanding the Options**: We need to evaluate the four options provided: loss of half of its leaves, loss of half of its branches, loss of all of its leaves, and loss of all its bark.

2. **Function of Bark**: The bark of a tree is the outermost layer that protects the tree. It consists of all the tissue outside the vascular cambium. The bark serves several important functions:
- It protects the tree from physical damage (wear and tear).
- It acts as a barrier against bacterial infections.
- It helps in reducing water loss from the tree.

3. **Evaluating Each Option**:
- **Loss of Half of Its Leaves**: This can occur naturally, especially during autumn, and trees can survive this loss as they can still photosynthesize with the remaining leaves.
- **Loss of Half of Its Branches**: While this is significant, the remaining branches can still support the tree's functions, including photosynthesis.
- **Loss of All of Its Leaves**: This would severely impact the tree's ability to perform photosynthesis, but it can still survive if it has its bark intact.
- **Loss of All Its Bark**: This would expose the tree to various threats, including physical damage, bacterial infections, and excessive water loss. Without bark, the tree becomes highly vulnerable and can lead to its death.

4. **Conclusion**: Among all the options, the loss of all its bark would do the maximum harm to a tree because it compromises the tree's protection and overall health.

**Final Answer**: Loss of all its bark.

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