Detailed Instructions: Given a scientific passage and an answer, generate a question for the given answer.
Q: Passage: A: Breathing consists of inhaling and exhaling, and its purpose is to move gases into and out of the body. Oxygen needed for cellular respiration is brought into the body with each inhalation. Carbon dioxide and water vapor produced by cellular respiration are released from the body with each exhalation. Answer: exhalation
A:
How is carbon dioxide and water vapor that is produced by cellular respiration released?