HomeEveryday Science MCQsWhich of the following invention is oldest ? 1281. Which of the following invention is oldest ?By Admin / September 17, 2025 A. Clock B. Microscope C. Barometer D. Cycle ✅ The correct answer is option A.
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