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Q. Which among the following was the first vaccine ever to be developed?

Q. When a barometer is taken down in a coal mine , which of the following happens with the Mercury level in the tube?

Q. Which among the following is the correct decreasing of bioelements in Human Body?

Q. Which among the following is true attribute to Polar bear?

Q. British Scientist JJ Thomson was awarded Nobel prize in Physics in 1906 for discovery of which of the following particle?

Q. Mizoroki-Heck reaction is catalyzed by which of the following metals?

Q. Which among the following is the lowest atomic number element without any stable isotopes?

Q. In which year India‘s first satellite Aryabhatta was launched?

Q. Consider the following: Copper Zinc Tin Gun Metal is the alloy of which among the above?

Q. Normal‖ rainfall is slightly acidic (and a pH of 5.6 has been assigned which might be somewhere near 5 ) because of the presence of _______?