Question: Fact 1: Brain cells die quickly if their oxygen supply is cut off. Fact 2: Brain atrophy means the brain matter has shrunk, often because brain cells are dying or dead. Given the two facts above, what causes brain atrophy?
OPTIONS:
- Smoking
- sodium
- Dehydration
- sweating
- death
- birth
- Veins and arteries.
- lack of oxygen
Answer: lack of oxygen

Question: Fact 1: Planting trees has a positive impact on an ecosystem. Fact 2: Biodiversity encourages a healthier ecosystem. Given the two facts above, what does planting trees have a positive impact on?
OPTIONS:
- coral growth
- plant reproduction
- humans
- biodiversity
- important habitats
- coral reefs
- genetic diversity
- moss growth
Answer: biodiversity

Question: Fact 1: An automobile engine transforms chemical energy into mechanical energy. Fact 2: Mechanical Energy- Mechanical energy is the energy of moving objects. Given the two facts above, automobile engines transform chemical energy into what sort of energy for objects?
OPTIONS:
- life
- guns
- engines
- moving
- solar
- vehicles
- water
- Cars
Answer:
moving