Problem:OPTIONS:
- reactive
- destroyed
- inactive
- an object
- It expands
- kinetic
- warm
- inorganic

Fact 1: Light enters the eye through an opening called the pupil. Fact 2: Pupils are reactive to light and accommodation. Given the two facts above, light enters the eye through an opening that is what to light and accommodation?
****
A: reactive

Problem:OPTIONS:
- drinking
- Chlorophyll
- sweating
- praying
- evaporation
- crying
- helping
- rest

Fact 1: Most people can survive only a few days without water. Fact 2: And drinking water is something that people just have to have. Given the two facts above, what can most people survive only a few days without doing?
****
A: drinking

Problem:OPTIONS:
- radiation shielding
- hydrogen and oxygen
- electromagnetic energy
- gasoline
- direct energy
- heat energy
- a closed circuit
- oxygen

Fact 1: Powering an electrical device with a battery requires a path for electricity to flow through a closed circuit. Fact 2: Electric cars have big batteries instead of engines. Given the two facts above, an electric car requires what to operate?
****
A: a closed circuit

Problem:OPTIONS:
- pipe
- eyes
- Tail
- dorsal
- mouth
- speed
- gills
- slowly

Fact 1: Along tail can be used to move through water by an animal. Fact 2: Sharks use their tail to move through the water. Given the two facts above, how do sharks move through the water?
****
A:
Tail