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In Waves in air, fluids and solids, which option best shows process reasoning for the objective: Explain refraction as a change in direction when a wave changes speed at a boundary between media.?.
- A.refraction: process reasoning for Reflection and refraction of waves
- B.refraction: a generic revision instruction without the wave idea
- C.refraction: the opposite relationship from Reflection and refraction of waves
- D.refraction: a different Unit 4.6 idea not named in the question
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