Fact 1: Adding salt to a liquid decreases the melting point of that liquid. Fact 2: Impurities like salts would also help by lowering the melting point. Given the two facts above, what decreases the melting point of liquid?
OPTIONS:
- Dilution
- Impurities
- Water expanding
- Dehydration
- Heat energy
- Pollution
- Time and energy
- evaporation

Answer: Impurities

Fact 1: When a plant grows , the size of the leaves of that plant may increase. Fact 2: Light makes plants grow tall. Given the two facts above, what makes plants leaves get bigger?
OPTIONS:
- Light
- heat
- Enzymes
- energy
- Snow
- Darkness
- Wind
- Dry soil

Answer: Light

Fact 1: Reproduction is the process by which living things give rise to offspring. Fact 2: Human offspring are completely immobile. Given the two facts above, what creates a completely immobile human?
OPTIONS:
- burning coal
- birthdays
- lungs
- tectonic plates
- sports
- reproduction
- our nearest star
- fossil fuels

Answer:
reproduction