[ Answer ]
SI System
[ Explanation ]
SI is a system, also known as the metric system. The metric system is used all around the world and helps calculate big and small measurements. There are seven basic units in the SI system. Here they are:
Meter - M
Kilogram - Kg
Second - S
Kelvin - K
Ampere - A
Mole - Mol
Candela - Cd
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