B
Q. Which one among the following is used as a moderator in nuclear reactors?
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Q. The chemical name of rat poison is
Q. The Dimensional Formula of Plank’s Constant (h) contains the Dimension of–
Q. Over 90% of the world's biomass is in
Q. Ozone saves the biosphere by absorbing high energy radiations called _____.
Q. All isotopes of the same element have ______
Q. Why is it difficult to breathe at higher altitudes -
Q. B-Diversity is also known as:
Q. A body weighs slightly more at the poles than at the equator because
Q. Besides CO2, the other green house gas is
Q. A bomb is dropped at a point from a moving aeroplane. The pilot observes that
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