What are the basic four fundamental units?

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The basic four fundamental units are:

-LENGTH-unit of measure is METRE, the symbol being [m];

-MASS - unit of measure is KILOGRAM, the symbol being [Kg];

-TIME - unit of measure is SECOND, the symbol being [sec];

-TEMPERATURE - unit of measure is KELVIN degree, the symbol being [K]

Metre, Kilogram, Second and Kelvin. Respectively for Length, Mass, Time and Temperature.

**Sources:**

- mass- SI unit kg (kilograms)
- time- SI unit s (seconds)
- temperature- SI unit K (kelvin)
- length- SI unit m (meters)

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