basic science and engineering for rrb alp Cbt 2 || General science for Rpf Si,Constable Exam 2018

Basic science and engineering for rrb alp Cbt 2 || General science for Rpf Si,Constable Exam 2018 1. Who invented vaccination for small pox? चेचककेटीकेकाअविष्कारकिसनेकिया? Ans:-Edward jenner\ एडवर्डजेनर 2. Pond silk is known as _____.\ पोंडसिल्कको____केरूपमेंभीजानाजाताहै। Ans:-spirogyra\ स्पिरोगीरा 3. The momentum of an object depends on which factors? किसीवस्तुकासंवेगकिनकारकोंपरनिर्भरकरताहै? Ans:- Mass and velocity of the […]