Given a scientific passage and an answer, generate a question for the given answer.

Example Input: Passage: Pulmonary circulation is the part of the circulatory system that carries blood between the heart and lungs (the term pulmonary means "of the lungs"). It is illustrated in Figure below . Deoxygenated blood leaves the right ventricle through pulmonary arteries, which transport it to the lungs. In the lungs, the blood gives up carbon dioxide and picks up oxygen. The oxygenated blood then returns to the left atrium of the heart through pulmonary veins. Answer: oxygen
Example Output: While in the lungs, blood gives up carbon dioxide and picks up what element before returning to the heart?

Example Input: Passage: All living things are capable of reproduction, the process by which living things give rise to offspring. Answer: reproduction
Example Output: All living things are capable of what process whereby living things give rise to offspring?

Example Input: Passage: In chemosynthesis, organisms break down chemicals to make food energy. Answer: chemosynthesis
Example Output:
What is the process by which organisms break down chemicals to make food energy?