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

Answer: The burning of fossil fuels has added pollutants that contain sulfur atoms to the air. These pollutants have contributed to which of the following?

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

Answer: Typically, sedimentary rocks are formed

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

Answer:
Heat from deep in Earth's interior is transferred to its crust by which of the following?