Which system of measurement has been standardized worldwide for scientific uses?

a. the english system
b. the french system
c. the arabic system
d. the systeme international

The International System of Units (SI) is used in almost every country in the world (except Burma, Liberia and the United States).

This system was created in 1960 by the 11th General Conference of Weights and Measures in France and is made up of seven basic units:  

-Ampere (electric current)

-Kelvin (temperature)

-Second (time)

-Meter (length)

-Kilogram (mass)

-Candela (luminous intensity)

-Mol (amount of substance) *added to the system in 1971

Plus an unlimited number of derived units from the main ones.

the answer for apex is the lowest

in physics zero. in muscle fatigue could be high