Question: Fact 1: Sound can be used for communication by animals. Fact 2: Orangutans have a vocal repertoire of about 13 sounds. Given the two facts above, orangutans can communicate by doing what?
OPTIONS:
- mental telepathy
- Infomercials
- contracting
- singing opera
- focusing a lens
- vocalizing
- adding heat
- unidirectional
Answer: vocalizing

Question: Fact 1: Some parasites live on the surface of their host. Fact 2: Survival is to live, to live means hope. Given the two facts above, where so parasites go to survive?
OPTIONS:
- in a field
- away from a host
- heat produced
- loose soil
- in the water
- on a host
- Most plants
- retina
Answer: on a host

Question: Fact 1: Fire converts chemical energy into light and heat energy. Fact 2: Fuel has a chemical energy. Given the two facts above, what converts fuel into light and heat energy ?
OPTIONS:
- warmth
- Lift
- food
- fire
- NaCl
- Cars
- trees
- reacts
Answer:
fire