Questions

Schwann cells or neurolemmocytes are the cells in the peripheral nervous system that form the myelin sheath around a neuron's axon.

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As compared to diskettes, the hard disks are more expensive.

A diskette is a RAM, removable data storage medium that can be used with personal computers. It is also known as Floppy or Floppy disk. It is composed of a disk of thin and flexible magnetic storage medium, sealed in a rectangular plastic enclosure lined with fabric that removes dust particles.

From the given conditions ,

only A = 27 yrs satisfies.

The Economic and Social Council (ECOSOC) is one of the six principal organs of the United Nations for coordinating the economic, social and environmental issues, as well as for implementing internationally agreed development goals. Recently, it is in news because India has been re-elected to the United Nations ECOSOC for another 3-year term. India was among 18 nations to win election to the Economic and Social Council (ECOSOC). India obtained 183 votes, the second highest after Japan in the Asia Pacific category. The elected members of ECOSOC for a three-year term beginning 1 January, 2018 are Belarus, Ecuador, El Salvador, France, Germany, Ghana, India, Ireland, Japan, Malawi, Mexico, Morocco, Philippines, Spain, Sudan, Togo, Turkey and Uruguay. The headquarters of the ECOSOC is located in New York, Unites States.