Reverse osmosis is used for desalination of sea water.

When hypothesis are confirmed by varied tests then it becomes theory. A theory is always backed by evidence; a hypothesis is only a suggested possible outcome, and is testable and falsifiable.

The present lokayukt is Harish Chandra Mishra of Delhi.

Abhinav Bharat Society (Young India Society) was an Indian Independence secret society founded by Vinayak Damodar Savarkar and his brother Ganesh Damodar Savarkar in 1904.

Bankim Chandra Chatterjee wrote the national song Vande Mataram. It is a poem written in Sanskrit by Bankim Chandra Chatterjee in his Bengali novel Anandamath. It later was made the National Song of our country.

Nobel Peace Prize 2016 was awarded to Colombian President John Manual Santos for his resolute efforts to bring the countries more than 50 years long Civil War to an end. He is the second Colombian to win Nobel Prize after Gabriel Garcia Marquez who won the 1982 Nobel Prize for literature.

Raindrops start to form in a roughly spherical structure due to the surface tension of water. This surface tension is the "skin" of a body of water that makes the molecules stick together.