Problem: Write a question you would see in a school textbook.

Answer: Which of the following animal features most helps the animal move around in its habitat?

Problem: Write a question you would see in a school textbook.

Answer: Which of these features of Earth's crust are caused by the shifting of tectonic plates?

Problem: Write a question you would see in a school textbook.

Answer:
An Italian scientist named Alessandro Volta invented the Voltaic pile in 1800. It was able to produce a steady electrical current. Based on this description, what is the modern equivalent of the Voltaic pile?