Water droplets that are too heavy to float make

Options

A. Fog
B. Clouds
C. Rain
D. Smoke

Answer

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks about water droplets that are too heavy to float. We need to identify which form of water droplets cannot remain suspended in the air.

2. **Identifying Water Droplets**: There are different forms of water in the atmosphere, such as rain, fog, clouds, and smoke. We need to analyze each one to determine which is too heavy to float.

3. **Analyzing Rain**: Rain consists of water droplets that have accumulated in clouds. When these droplets become too heavy, they fall to the ground as rain. This indicates that rain droplets are indeed too heavy to float.

4. **Considering Other Forms**:
- **Fog**: Fog is made up of tiny water droplets that are light enough to float in the air.
- **Clouds**: Clouds are also composed of water vapor and droplets that are light, allowing them to float.
- **Smoke**: Smoke consists of tiny particles and gases, which can also float in the atmosphere.

5. **Conclusion**: Since rain is the only form of water droplets mentioned that is heavy enough to fall to the ground and cannot float, the correct answer is rain.

**Final Answer**: Rain

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