The process in which liquid water changes into gas is called

Options

A. precipitation
B. condensation
C. evaporation
D. transpiration.

Answer

To answer the question, "The process in which liquid water changes into gas is called," we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Processes**: The question lists four processes: precipitation, condensation, evaporation, and transpiration. We need to understand what each of these terms means.

2. **Define Each Term**:
- **Precipitation**: This refers to any form of water, liquid or solid, that falls from the atmosphere to the earth, such as rain, snow, or hail.
- **Condensation**: This is the process where water vapor (gas) turns back into liquid water. It is essentially the reverse of evaporation.
- **Evaporation**: This is the process where liquid water changes into water vapor (gas). This is what the question is asking about.
- **Transpiration**: This refers to the process of water loss from plants in the form of vapor.

3. **Determine the Correct Answer**: Since the question specifically asks for the process where liquid water changes into gas, the correct answer is **evaporation**.

### Final Answer:
The process in which liquid water changes into gas is called **evaporation**.

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