Question

What are SI units? What is the SI unit of time?​

Answer 1

Answer:

What are SI units?

answer- The International System of Units is the modern form of the metric system. It is the only system of measurement with an official status in nearly every country in the world

What is the SI unit of time?

answer-The second, symbol s, is the SI unit of time. It is defined by taking the fixed numerical value of the cesium frequency ΔνCs, the unperturbed ground-state hyperfine transition frequency of the cesium 133 atom, to be 9 192 631 770 when expressed in the unit Hz, which is equal to s-1.

Explanation:

pls mark me as brainleast and folow me please

Answer 2

SI unit means Standard international unit for a particular quantity; for example - SI unit of velocity is m/s (meter per second )
SI unit of Time is Seconds (s)