Questions

Permanent hardness of water may be removed by the addition of Sodium Carbonate.

The Deputy Chairman of the Rajya Sabha presides over the proceedings of the Rajya Sabha in the absence of the Chairman of the Rajya Sabha. The Deputy Chairman is elected internally by the Rajya Sabha.

NDA's Harivansh Narayan Singh becomes Rajya Sabha Deputy Chairperson on the opponent Hari Prasad.

Akshay Venkatesh, a renowned Indian-Australian mathematician, is one of four winners of mathematics’ prestigious Fields medal, known as the Nobel prize for math. New Delhi-born Venkatesh, 36, who is currently teaching at Stanford University, has won the Fields Medal for his profound contributions to an exceptionally broad range of subjects in mathematics.

Lothal

Project authorization should not be exclusively based upon the impact of an executive's bonus (many people would agree that it should not ever be based upon an executive's bonus). Answer A, B, and D are common events that predicate the need for project authorization and can evolve into large scope projects.

Same charges will repel each other and the charges that are different will attract each other.