If RH is high

Options

A. we feel sultry
B. we perspire less
C. clothes do not dry easily
D. all the above are correct

Answer

### Step-by-Step Solution:

1. **Understanding Relative Humidity (RH)**:
- Relative Humidity (RH) is defined as the ratio of the actual water vapor content in the air to the maximum possible water vapor content at a specific temperature, expressed as a percentage.
- Mathematically, it can be represented as:
\[ RH = \left( \frac{\text{Actual Water Vapor Content}}{\text{Saturated Water Vapor Content}} \right) \times 100\% \]

2. **Implications of High RH**:
- When RH is high, it indicates that the air contains a significant amount of water vapor, approaching its saturation point. This means that the actual water vapor content is high.

3. **Effects on Daily Life**:
- **Clothes Drying**: High RH means that the air is already saturated with moisture. As a result, clothes do not dry easily because the air cannot absorb more water vapor.
- **Physical Comfort**: High RH can lead to discomfort. People often feel sultry or sticky because the body’s natural cooling mechanism, perspiration, is less effective in humid conditions.
- **Health Issues**: Individuals with respiratory conditions, such as asthma, may experience exacerbated symptoms due to the high concentration of water vapor in the air, which can make breathing more difficult.

4. **Conclusion**:
- Therefore, when RH is high, it leads to difficulties in drying clothes, discomfort in physical conditions, and potential health issues for sensitive individuals. All these factors contribute to a general feeling of discomfort and sultriness.