Fact 1: Agreenhouse is used to protect plants by keeping them warm. Fact 2: Retains heat in cold weather, reflects exterior heat in warm weather. Given the two facts above, a greenhouse is used to protect plants by doing what?
OPTIONS:
- reduced heat
- colder and wetter
- storing lawnmowers
- holding plant pots
- retaining heat
- In the winter
- food and shelter
- starting fires
retaining heat

Fact 1: When a body of water receives more water than it can hold , a flood occurs. Fact 2: Flood probability is based on past floods. Given the two facts above, how do we determine the probability of receiving more water than a body can hold?
OPTIONS:
- evaporation
- climate
- The past
- watershed
- Dilution
- energy usage
- Temperature
- salinity

Answer: The past

Question: Fact 1: Antibodies are large, Y-shaped proteins that recognize and bind to antigens. Fact 2: Antibodies are produced to fight antigens. Given the two facts above, what do proteins fight?
OPTIONS:
- heat
- calories
- carbohydrates
- illness
- parasites
- fat
- resistance
- antigens
Answer: antigens

input with options: Fact 1: Lakes are formed by precipitation and runoff. Fact 2: The Caspian Sea is, strictly speaking, not really a sea but instead the world's largest lake. Given the two facts above, what was formed by precipitation and runoff?
OPTIONS:
- a hydraulic system
- streams.
- The Caspian Sea
- kalenchoes
- near the shoreline
- swamp vegetation
- Calcium carbonate
- patch reefs
output: The Caspian Sea

Q: Fact 1: When metal conducts heat , that metal expands. Fact 2: When a metal rod is warmed, the transfer of heat is by conduction. Given the two facts above, when metal is warmed, the transfer of heat does what to metal?

OPTIONS:
- expands
- Energy.
- breaks
- blossoms
- burning
- voltage
- improve
- decreases

A: expands

Fact 1: Competition may cause animals to fight towards members of their own species. Fact 2: Humans are animals too. Given the two facts above, what species may be caused to fight each other by competition?
OPTIONS:
- h2o
- Lobsters
- violence
- pigeons
- gases
- omnivores
- bullfrogs
- humans
humans