HomeEveryday Science MCQsThe SI standard of time is based on_____________? 1364. The SI standard of time is based on_____________?By Admin / September 17, 2025 A. the daily rotation of the earth B. the frequency of light emitted by Kr86 C. the yearly revolution of the earth about the sun D. a precision pendulum clock ✅ The correct answer is option E.
1. Which of the following does not pollute the air? Leave a Comment / Everyday Science MCQs / By Admin
2. Which of the following planets have the longest day? Leave a Comment / Everyday Science MCQs / By Admin