question: Write a question you would see in a school textbook.
answer: An atom consists of a nucleus surrounded by

question: Write a question you would see in a school textbook.
answer: Which of the following is the main role of flowers found on most flowering plants?

question: Write a question you would see in a school textbook.
answer:
Lichens are symbiotic organisms made of green algae and fungi. What do the green algae supply to the fungi in this symbiotic relationship?