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Answer:

Temperature is measured by the SI unit 'celsius'.

Length is measured by the SI unit 'metre'.

Mass is measured by the SI unit 'kilogram'.

Time is measured by the SI unit 'second'.

Frequency is measured by the SI unit 'hertz'.

Electric current is measured by the SI unit 'ampere'.u of the year of annexation of this email is required for video is not you dear I am a little more