Q: Fact 1: Adoorbell converts electrical energy into sound. Fact 2: Speakers convert electrical energy into sound waves. Given the two facts above, what energy does a door doorbell need to be heard through speakers?

OPTIONS:
- consumers
- Solar
- Motion
- to move people
- sensory neurons
- Wind
- it needs them
- Electrical

A: Electrical

input: OPTIONS:
- a blanket
- lipids
- grass
- fur
- wings
- food
- a space heater
- Energy Now, answer this question: Fact 1: Fat is used to keep animals warm. Fact 2: Food turns into fat. Given the two facts above, what do animals need to keep warm?
A:
output: food

Fact 1: Arefrigerator is used for keeping food fresh for a long period of time. Fact 2: Refrigeration slows the growth of bacteria, molds, and other micro-organisms. Given the two facts above, what does slowing the growth of bacteria do for a food?

OPTIONS:
- It remains dormant
- survive
- It decreases
- Keeps it warm
- Makes it taste worse
- Makes it go bad quicker
- Keeps it fresh
- Cooking

Answer: Keeps it fresh

Problem: OPTIONS:
- matter
- heat
- earth
- solutes
- oceans
- Rocks
- people
- Lift
Q: Fact 1: Gravity causes objects that have mass to be pulled down on a planet. Fact 2: Rocks have mass. Given the two facts above, what does gravity cause to be pulled down on a planet?
Answer: Rocks

Problem:OPTIONS:
- motors
- bicycles
- paddle boats
- humans
- cars
- trains
- goats
- skateboards

Fact 1: Operating an automobile usually requires fossil fuels. Fact 2: Cars, see Automobiles. Given the two facts above, what requires fossil fuels for operation?
****
A: cars

Problem:OPTIONS:
- gasoline engines
- Electric generators
- electric cars
- electricity
- solar panels
- cigarettes
- an engine
- ionization

Fact 1: Using a gasoline engine requires burning gasoline. Fact 2: And, of course, burning of gasoline produces toxic carbon monoxide. Given the two facts above, toxic carbon monoxide is produced by what?
****
A:
gasoline engines