Question

What does the SI use to identify a unit​

Answer 1

SI uses 7 base units to do measurements.

Step-by-step explanation:

The International System of Units (SI) is a modern metric system of units of measurements. There are seven base units and multiple derived units using them.

The base units are:

1. Mass: Kilogram (kg)
2. Length: Meter (m)
3. Time: Second (s)
4. Temperature: Kelvin (K)
5. Amount of Substance: Mole (mol)
6. Electric Current: Ampere (A)
7. Luminous Intensity: Candela (cd)