question: Write a question you would see in a school textbook. OPTIONS:
- There will be fewer coyotes.
- The coyotes will produce more young.
- More coyotes will arrive from other locations.
- Each coyote will spend less time hunting food.
answer: The main source of food for a coyote population in one area is mice. Which is most likely to happen to these coyotes if a new predator begins eating the mice?

question: Write a question you would see in a school textbook. OPTIONS:
- clear-cutting forests
- manufacturing plastics
- burning fossil fuels
- growing agricultural crops
answer: Which is the greatest impact humans have had on the carbon cycle?

question: Write a question you would see in a school textbook. OPTIONS:
- oceanic
- intertidal
- deep ocean
- open ocean
answer:
In which oceanic zone do clams and crabs survive by burrowing in the sand?