State whether the following statements are true or false:
Rain is the ultimate source of water.

Answer

**Step-by-Step Solution:**

1. **Understanding the Statement**: The statement in question is "Rain is the ultimate source of water." We need to determine if this statement is true or false.

2. **Definition of Ultimate Source**: The term "ultimate source" refers to the primary or most significant origin of something. In this case, we are looking for the main source of water on Earth.

3. **Water Cycle Explanation**: Water on Earth goes through a cycle known as the water cycle, which includes processes such as evaporation, condensation, and precipitation. Rain is a result of this cycle.

4. **Evaporation Process**: The process begins when the sun heats water in rivers, lakes, and oceans, causing it to evaporate and turn into water vapor.

5. **Formation of Clouds**: This water vapor rises into the atmosphere, cools down, and condenses to form clouds.

6. **Precipitation**: Eventually, when the clouds become heavy enough, the water falls back to the Earth as rain.

7. **Conclusion**: Since rain is a key component of the water cycle and replenishes water sources such as rivers, lakes, and groundwater, it can be considered a significant source of water. Therefore, the statement "Rain is the ultimate source of water" is **True**.

**Final Answer**: True

---