Q. When is the “National Science Day” celebrated in India?
? February 28
Q. World Tourism day is observed as
? September 27
Q. October 14 is observed as
? World standards day
Q. When is world post day recognized by the UN observed?
? October 9
Q. When is World Day against Child Labour observed?
? June 12
Q. When Air Force Day in India is celebrated?
? October 8
Q. Name the scientist who first declared that the earth revolves around the sun.
Q. Through which organ does a fish respire?
Q. Which lenses are used by the people having short – sightedness?
Q. What type of machine was ENIAC, built in 1946?