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Who is awarded by Noble prize for the discovery is neutron?
Ball bearings are used in bicycles, cars, etc., because
Gypsum is used for improvement of :
Mortar is a mixture of water, sand
Temperature inversion is
The Nobel Prize for Physiology or medicine 2010 was awarded for in vitro fertilization in humans to :
What is the first step in the refining of petroleum?
Which of the following elements is not radio-active ?
Who is the father of Botany?
Hair of a shaving brush cling together when the brush is removed from water due to
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