The SI standard of time is based on_____________? | MCQ Hive

Everyday Science MCQs

Q The SI standard of time is based on_____________?

A A. the daily rotation of the earth
B B. the frequency of light emitted by kr86
C C. the yearly revolution of the earth about the sun
D D. a precision pendulum clock

Previous Animals that eat plants are called___________________?

Next Oranges are rich source of____________?

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