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

Example Input: Passage: The atmosphere protects living things from the Sun's most harmful rays. Gases reflect or absorb the strongest rays of sunlight. Figure below models this role of the atmosphere. Answer: the atmosphere
Example Output: What is the name of the protective layer of gases that surrounds the earth and blocks harmful rays from the sun?

Example Input: Passage: In addition to having a plasma membrane, cytoplasm, a nucleus and ribosomes, eukaryotic cells also contain membrane-bound organelles . Each organelle in a eukaryote has a distinct function. Because of their complex level of organization, eukaryotic cells can carry out many more functions than prokaryotic cells. The main differences between prokaryotic and eukaryotic cells are shown in Figure below and listed in Table below . Keep in mind that some eukaryotic cells may have characteristics or features that other eukaryotic cells lack, such as the cell wall. Answer: eukaryotic cells
Example Output: Which type of cell can carry out more functions, eukaryotic cells or prokaryotic cells?

Example Input: Passage: Leaves are rich in chloroplasts that function as solar collectors and food factories. The first leaves were very small, but leaves became larger over time. Answer: chloroplasts
Example Output:
What are in leaves that function as solar collectors and food factories?