HomeEveryday Science MCQsVacuum tubes have been replaced by__________? 1488. Vacuum tubes have been replaced by__________?By Admin / September 17, 2025 A. Conductors B. Diodes C. Transistors D. None of these ✅ The correct answer is option C.
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