High c = absorbs/releases large heat with small ΔT. Stabilizes engine temperatures and organism body temperatures. Memory tip: 'High specific heat = thermal buffer; water moderates climate and physiology'. Property application frequently tested in competitive exams.
Explanation:
Rules: leading zeros not significant; trailing zero after decimal is significant. Digits 4,0,5,0 are significant ⇒ 4 sig figs. Memory tip: 'Start at first non-zero; include trailing zeros after decimal'. Measurement precision concept frequently tested in competitive exams.
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