Problem:OPTIONS:
- cream
- light
- ointment
- the sun
- Lukewarm water
- cigars
- Acids
- NaCl

Fact 1: Alaser is used for producing light. Fact 2: Also, very powerful, high concentration lasers can burn or cut the skin. Given the two facts above, what can burn the skin?
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A: light

Problem:OPTIONS:
- staying warm
- observe it
- argue about it
- ignore it
- survive
- temperature
- A computer
- write about it

Fact 1: Climate is the average weather in an area over a long period of time. Fact 2: Along with simulating the climate, it is crucial to observe the climate. Given the two facts above, to learn more about the average weather, it is essential to:?
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A: observe it

Problem:OPTIONS:
- streams.
- streams
- coral reefs
- sandy soils
- aqueous solution
- swamp vegetation
- calcite
- Sediment

Fact 1: If soil is permeable then water easily flows through that soil. Fact 2: Sandy soils are permeable. Given the two facts above, water easily flows through what?
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A: sandy soils

Problem:OPTIONS:
- exoskeleton
- four limbs
- communication
- nervous system
- hormones
- in the frog family
- proteins
- circulatory systems

Fact 1: Sound can be used for communication by animals. Fact 2: Animals use sound in sophisticated ways. Given the two facts above, animal what is sophisticated?
****
A:
communication