What relies on a relatively narrow range of something you can measure with paper strips?\nOptions:\n- (A) Length\n- (B) voltage\n- (C) all life\n- (D) mammals\n- (E) humans\n- (F) Most plants\n- (G) agriculture\n- (H) animals Let's be accurate as possible.
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All life relies on a relatively narrow range of pH, or acidity. Acidity is measured with a pH meter or with pH paper strips. All life relies on a relatively narrow range of something you can measure with paper strips.
The final answer: (C).
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