When Vasu was running high temperature her mother was nursing him by placing wet cloth on his forehead till temperature has gone down. Justilfy what purpose did the mother's action serve.

Explanation

### Step-by-Step Solution:

1. **Understanding the Situation**: Vasu is running a high temperature, indicating he has a fever. His mother is trying to help him feel better.

2. **Action Taken**: Vasu's mother places a wet cloth on his forehead. This is a common practice to help reduce fever.

3. **Process of Evaporation**: When the wet cloth is placed on the forehead, the water in the cloth begins to evaporate.

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