input with options: Fact 1: Plants use unsaturated fatty acids to store energy. Fact 2: Plants like cactus and sagebrush can survive. Given the two facts above, what uses unsaturated fatty acids to store energy?
OPTIONS:
- clouds
- volume
- density
- Conifers
- organisms
- Oak
- cactus
- alpacas
output: cactus

Q: Fact 1: Killing microorganisms in food can be used to extend the shelf life of that food. Fact 2: Irradiation kills microorganisms that spoil food. Given the two facts above, what can irradiation do?

OPTIONS:
- Plant growth is reduced
- make food glow
- make food unsafe
- harm consumers
- depress neuronal excitability
- extend the shelf life of food
- major threat to health
- prevent heat loss

A: extend the shelf life of food

input: OPTIONS:
- Riding a bike
- environment
- reduced heat
- sleep
- competition
- evolution
- Summer
- Energy Now, answer this question: Fact 1: Behaviors that improve fitness increase through natural selection. Fact 2: Natural selection is the mechanism of evolution. Given the two facts above, behaviors that improve fitness improve through what?
A:
output: evolution

Fact 1: Ethanol is produced by alcoholic fermentation of the glucose in corn or other plants. Fact 2: Methanol and Ethanol are two types of alcohol fuels used in cars. Given the two facts above, which product is widely used today to make fuel for cars?

OPTIONS:
- swamp gas
- corn
- comets
- meteorites
- fat
- energy
- oil
- Carbon

Answer: corn

Problem: OPTIONS:
- arteries
- water vapor
- breathing
- viewing
- condensation
- a prism
- glass
- chlorine
Q: Fact 1: If gas is heated then that gas will expand. Fact 2: Chlorine is a type of Green Cross gas. Given the two facts above, what will expand when heated?
Answer: chlorine

Fact 1: Melting means changing from a solid into a liquid by adding heat energy. Fact 2: Ice Sculptures melt away. Given the two facts above, what causes ice sculptures to turn to liquid? ?

OPTIONS:
- UV rays
- Snow
- salt and water.
- Heat energy
- air cools
- kinetic energy
- Subzero temperatures
- Water expanding

Answer:
Heat energy