question: Write a question you would see in a school textbook. OPTIONS:
- heart.
- lungs.
- stomach.
- muscles.
answer: Blood absorbs oxygen in the

question: Write a question you would see in a school textbook. OPTIONS:
- tissue decomposition
- cellular respiration
- photosynthesis
- transpiration
answer: Which mechanism helps carbon to cycle from the atmosphere to living organisms?

question: Write a question you would see in a school textbook. OPTIONS:
- friction
- gravity
- inertia
- momentum
answer:
Paco throws a ball. What force pulls the ball down toward the ground?