A second is... - the smallest unit of time., The abbreviation of seconds are... - "sec" or "s", How much bigger is a minute? - A minute is 60 seconds., The abbreviation of minutes is.. - "min", Hours are... - the largest unit of time in a day., An hour is... - 60 minutes., How much time does a day last? - A day lasts 24 hours.,

seconds, minutes and hours

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