Questions

C. F. Andrews - Charles Freer Andrews was known as Deenbandhu. He was given this name by Mahathma Gandhi for his contributions towards Indian independence. 

Deenbandhu means a friend of the poor.

Sound intensity is measured in decibels(db). Sound pollution above 120 db becomes more hazardous and have adverse affects on human life. 

M.F.Hussain

Survey of India publishes maps and the unrestricted category maps can be obtained at very affordable prices from its several Geospatial data centers. Restricted category maps require due approval from government authorities. Many other rules govern the sale and use of Survey of India maps. Only an Indian citizen may purchase topographic maps and these may not be exported from India for any reason.

The Survey of India is India's central engineering agency in charge of mapping and surveying, set up in 1767. Its members are from Survey of India Service cadre of Civil Services of India. It is headed by the Surveyor General of India.

In message passing, it is the condition in which, both, the sender and receiver are blocked until the message is delivered.