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

Answer: Several interchangeable parts are used in the manufacture of automobiles. Some examples of these parts are batteries, windshield wiper blades, spark plugs, and tires. Which of the following is an advantage of interchangeable parts over non-interchangeable parts on automobiles?

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

Answer: Which is the thickest layer of Earth?

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

Answer:
The theory of spontaneous generation was eventually disproved scientifically by