X-Rays, which are now used on a day to day basis for diagnosis in medicine, was discovered by?
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Who among the following was honoured with the IAAF male Athlete of year Award for 2017 at a award ceremony in Monaco in November 2017?
__ won the FIFA Ballon d'Or award for the best player in the World in 2015.
____ jointly launched International Solar Alliance (ISA) at Conference of Parties (CoP21) Climate Conference held in Paris, France on 1st December 2015.
In perfect competition _____.
The public debt is the
The demand curve _____.
What is the number of atoms constituting a molecule known as?