Questions

'M' is used as a unit of molarity and stands for mole per litre i.e, number of moles of solute per liter of solution.

The word assurance means ‘guarantee’. So the Quality Assurance Group’s role is to guarantee that the product is of high quality. They examine the overall s/w development process and their responsibility is to create and enforce standards and methods to improve it with the goal of preventing bugs from ever occurring.

The author of the book 'Panchashati Galpo' is Atin Bandyopadhyay or Atin Banerjee. He was a writer of Bengali literature.

Nuclear Force

Egypt is called as the gift of the Nile river. It is called so because the nile river served as means for transport, help in irrigation for farming, made soil fertile for growing crops. It made the Egyptian civilization possible. 

Amino acids are the building blocks of proteins. There are about 21 essential amino acids in the human body like histidine, leucine, lysine... The general formula for amino acid is R-CH(NH2)-COOH.