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The Bill of Rights established the rights of citizens. It is also called as Declaration of rights or Charter of rights. It is a list of most important rights to the citizens of a country.

IC's (Integrated Circuits) also called as Chips or Microchips whose invention allowed computers to be smaller and smaller.

Sewage treatment generally involves three stages, called primary, secondary and tertiary treatment.

Primary treatment consists of temporarily holding the sewage in a quiescent basin where heavy solids can settle to the bottom while oil, grease and lighter solids float to the surface. This removes material that will either float or readily settle out by gravity. It includes the physical processes of screening, comminution, grit removal, and sedimentation.

Secondary treatment removes the soluble organic matter that escapes primary treatment. It also removes more of the suspended solids. Removal is usually accomplished by biological processes in which microbes consume the organic impurities as food, converting them into carbon dioxide, water, and energy for their own growth and reproduction.

Tertiary treatment includes removal of nutrients such as phosphorus and nitrogen and practically all suspended and organic matter from waste water.

Hub works on layer 1 i.e, physical layer.

Other than being the politician of India, Sushma Swaraj is Advocate by profession. She was the first women chief minister of Delhi for a brief period, Second women Minister for External Affairs after Indira Gandhi.