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

Answer: In which oceanic zone do clams and crabs survive by burrowing in the sand?

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

Answer: The surface of Earth is covered by a relatively thin layer of water called the

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

Answer:
The work of which scientist serves as the basis for many procedures used in agriculture, such as selective breeding of plants?