The movement of carbon dioxide-rich air out of the body is known as

Options

A. exhalation
B. perspiration
C. inhalation
D. transpiration

Answer

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks about the process of moving carbon dioxide-rich air out of the body.

2. **Identifying Key Terms**: The key terms in the question are "carbon dioxide-rich air" and "movement out of the body."

3. **Defining Related Processes**:
- **Inhalation**: This is the process of taking air into the lungs, which primarily involves oxygen intake.
- **Exhalation**: This is the process of expelling air from the lungs, which involves releasing carbon dioxide.
- **Respiration**: This is a broader term that encompasses both inhalation and exhalation, as well as the biochemical processes that produce energy.
- **Transpiration**: This process is specific to plants and involves the release of water vapor through stomata.

4. **Analyzing the Options**:
- The question provides four options: Exhalation, Respiration, Inhalation, and Transpiration.
- Since the question specifically mentions the movement of carbon dioxide-rich air out of the body, we can eliminate Inhalation and Transpiration as they do not pertain to this process.

5. **Conclusion**: The correct answer is **Exhalation**, as it specifically refers to the process of expelling carbon dioxide-rich air from the lungs.

**Final Answer**: The movement of carbon dioxide-rich air out of the body is known as **Exhalation**.

---