question: Write a question you would see in a school textbook.
answer: Most birds sit on their eggs until they hatch. Which of these is the most important reason why birds sit on their eggs?

question: Write a question you would see in a school textbook.
answer: What is the role of chlorophyll in photosynthesis?

question: Write a question you would see in a school textbook.
answer:
Which animals are most likely to carry the seeds found in berries from the parent plant to another area?