Fact 1: Air pollution harms the respiratory and circulatory systems. Fact 2: Exposure to ozone can diminish lung function and increase susceptibility to respiratory infection. Given the two facts above, which type of pollution is most harmful to lungs?
OPTIONS:
- Lead
- air
- Cars
- oil
- acid
- CFCs
- SO2
- mold
air

Fact 1: Hydrogen bonds cause water to expand when it freezes. Fact 2: Hydrogen bonds Hydrogen bonds are primarily electrostatic in origin. Given the two facts above, what causes water to expand?
OPTIONS:
- evaporation
- Condensation
- Generating heat
- electrostatic
- friction
- heat energy
- heat produced
- wind and erosion

Answer: electrostatic

Question: Fact 1: Migrants typically travel long distances. Fact 2: Manatees are a migrant species. Given the two facts above, what typically travel long distances?
OPTIONS:
- supersonic
- spiders
- humans
- Cars
- trains
- ants
- manatees
- skateboards
Answer: manatees

input with options: Fact 1: Most canyons are formed by flowing rivers through erosion over long periods of time. Fact 2: Rivers and glaciers are made of water. Given the two facts above, flowing water forms most canyons through erosion over what?
OPTIONS:
- movement of tectonic plates
- dry streambeds
- long periods of time
- Physical weathering
- Time and energy
- short periods of time
- massive damage
- calving glaciers
output: long periods of time

Q: Fact 1: Lung cancer is most often caused by exposure to tobacco smoke. Fact 2: Higher tobacco taxes reduce smoking and smoking related sickness. Given the two facts above, to reduce the rate of lung cancer, governments can do what?

OPTIONS:
- Subsidize oil exploration
- Distribute sunglasses
- Increase tobacco taxes
- Transfers energy
- destroying bacteria
- protect them
- Promote asbestos use
- reusing materials

A: Increase tobacco taxes

Fact 1: Using a gasoline engine requires burning gasoline. Fact 2: When the fuel is ignited, it burns with oxygen. Given the two facts above, if you want to use a gasoline engine, what must you do with the gasoline?
OPTIONS:
- drain the gasoline
- wash the gasoline
- cool down the gasoline
- move to different locations
- adding heat
- ignite the gasoline
- vaporization
- evaporation
ignite the gasoline