Question: Fact 1: Sonar is used to find the location of an object. Fact 2: Periscopes are still useful, despite the sonar and electronic sensors of modern submarines. Given the two facts above, periscopes are used to find out what about objects?
OPTIONS:
- microscopic
- density
- location
- weight
- Light
- energy
- observe it
- age
Answer: location

Question: Fact 1: Skin is used for protecting the body from harmful substances. Fact 2: Acids are harmful to tissue. Given the two facts above, what is used to protect the body from acid?
OPTIONS:
- the skin
- tube
- evaporation
- a tongue
- electricity
- fur and fat
- the bones
- the mouth
Answer: the skin

Question: Fact 1: Consumers take in food by eating producers or other living things. Fact 2: Producers gain in terms of producer surplus. Given the two facts above, what can take in food by eating those that gain in terms of surplus?
OPTIONS:
- rabbit
- Energy
- animals
- those who don't eat
- insects
- producers
- dead beings
- consumers
Answer:
consumers