question: Write a question you would see in a school textbook.
answer: A chemist observed bubbling and fizzing after adding an acid solution to a white powdery substance in a beaker. Which of the following can be inferred?

question: Write a question you would see in a school textbook.
answer: The brain, spinal cord, and nerves are organs that perform which primary function?

question: Write a question you would see in a school textbook.
answer:
Elements in the same column of the Periodic Table of the Elements all