Fact 1: Arteries generally carry oxygen-rich blood. Fact 2: Most strokes occur when a blood clot blocks an artery that carries oxygenated blood to the brain. Given the two facts above, what happens when oxygenated blood doesn't reach the brain?
OPTIONS:
- anemia
- Dehydration
- blood flows to the heart
- increased iron in the brain
- arteries unclog
- It decreases
- a stroke
- fever

Answer: a stroke

Fact 1: Storms cause bodies of water to increase amount of water they contain. Fact 2: Hurricanes are killer storms. Given the two facts above, what can cause bodies of water to increase the amount of water they contain?
OPTIONS:
- flooding
- droughts
- hurricanes
- heat energy
- evaporation
- heat waves
- suction
- erosion

Answer: hurricanes

Fact 1: Coal is used to produce electricity by burning in coal-fire power stations. Fact 2: Coal comes from anciently buried plants, and petroleum is from animals. Given the two facts above, what can ancienty buried plants produce?
OPTIONS:
- nutrients
- heat energy
- scattered light
- food and shelter
- Earthworms
- energy
- eukyarotes
- electricity

Answer:
electricity