Problem:OPTIONS:
- evaporation
- they get wet
- heat energy
- a wave
- they bend
- they change frequency
- break off
- they vanish

Fact 1: Water causes refraction of light. Fact 2: Refraction Refraction is the bending of light rays. Given the two facts above, what happens to light rays in water?
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A: they bend

Problem:OPTIONS:
- metal
- cold
- rings
- coral reef
- sea urchins
- natural gas
- exoskeleton
- shells

Fact 1: Fossils are formed when layers of sediment cover the remains of organisms over time. Fact 2: Natural gas is a fossil fuel. Given the two facts above, what is formed from layers of sediment covering the remains of organisms over time?
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A: natural gas

Problem:OPTIONS:
- Time
- Weathering
- Air
- heat energy
- forces
- friction
- rainfall
- Animals

Fact 1: Sediment is formed by weathering. Fact 2: Sediment is made of rocks, dirt, and earth. Given the two facts above, what causes rocks, dirt, and earth to combine?
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A: Weathering

Problem:OPTIONS:
- use oxygen, release carbon
- Plant growth is reduced
- hide
- eat
- erode
- move to find shelter.
- Destroy crops
- Converting waste.

Fact 1: Habitat destruction causes animals to move to find shelter in another habitat. Fact 2: Habitat destruction from logging is also a major concern. Given the two facts above, what does logging cause animals to do?
****
A:
move to find shelter.