Question to you: What causes h20 to expand when frozen?\nOptions:\n- (A) evaporation\n- (B) vaporization\n- (C) hydrogen bonds\n- (D) helium bonds\n- (E) mysterious forces\n- (F) nitrogen bonds\n- (G) Physical weathering\n- (H) precipitation.
Let's reason step-by-step:
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Hydrogen bonds cause water to expand when it freezes. Water is everywhere H20. Hydrogen bonds cause H20 to expand when it freezes. Final answer: (C).
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