input: OPTIONS:
- guns
- Computer
- Sight
- move
- Sonar
- sound
- Diving
- Satellite Now, answer this question: Fact 1: Sonar is used to find the location of an object. Fact 2: Surface ships use sonar to locate and track submarines. Given the two facts above, how do ships find submarines?
A:
output: Sonar

input: OPTIONS:
- water evaporates
- Something that makes plants green
- lakes freeze
- Warm air moving into cold air
- rocks and grasses glisten
- refraction of light
- lawns dry out
- it keeps an organism warm Now, answer this question: Fact 1: Dew is formed when water vapor condenses over night. Fact 2: Rocks and grasses glisten with dew. Given the two facts above, what happens when water vapor condenses over night?
A:
output: rocks and grasses glisten

input: OPTIONS:
- Fuel cells
- using electricity
- animals
- Cooking
- organisms
- engines
- lightning
- solar power Now, answer this question: Fact 1: Using a gasoline engine requires burning gasoline. Fact 2: Oil and gasoline are fossil fuels. Given the two facts above, what requires burning fossil fuels?
A:
output:
engines