Fact 1: Soil is formed by rocks eroding. Fact 2: Rivers erode the rocks they flow over. Given the two facts above, what causes rocks to be worn into soil?

OPTIONS:
- Fire
- Hurricanes
- wind
- Air
- dirt
- forces
- rivers
- Water

Answer: Water

Fact 1: All plants have a characteristic life cycle that includes alternation of generations. Fact 2: Many orchids are rewarding indoor plants. Given the two facts above, what have a characteristic life cycle that includes alternation of generations?

OPTIONS:
- clouds
- h2o
- Conifers
- ducks
- crocodiles
- burrs
- orchids
- humans

Answer: orchids

Fact 1: Afire requires oxygen to burn. Fact 2: If the oxygen is removed, the fire is smothered. Given the two facts above, how do you put out a fire?

OPTIONS:
- power
- boiling
- protect them
- electrically
- smother it
- evaporation
- mechanical
- heating liquids

Answer: smother it

Fact 1: Some viruses can cause cancer. Fact 2: Cancer is an abnormal growth of cells. Given the two facts above, what be caused by some viruses?

OPTIONS:
- deadly and devastating
- a lot of human deaths
- Plant growth is reduced
- Something coming from a gland
- death and devastation
- contamination
- Abnormal cell growth
- extinction

Answer:
Abnormal cell growth