How many tribes in India?

Explanation: 'Republic' is a State in which supreme power is held by the people and their elected representatives. It has an elected head of state rather than a monarch.

Explanation: Sir J.C. Bose proposed a theory of the ascent of sap known as the pulsation theory. The Pulsating Universe Theory says that the universe follows self-sustaining cycles such as expanding and contrasting.

Explanation: Zero hour refers to the leftover time after question hour in Indian Parliament. During this time members are allowed to raise matters of importance without giving any prior notice. Zero hour is entirely at the discretion of the Speaker as there is no constitutional provision with regard to this.

Explanation: Adam Smith was an 18th-century Scottish philosopher. He is considered the father of modern economics. He published “The Wealth of Nations” in 1776.

Explanation: From official site of Nobel price- The Nobel Prize award ceremony in Stockholm took place at the Old Royal Academy of Music during the years 1901-1925. Since 1926, the ceremony has taken place at the Stockholm Concert Hall with few exceptions: 1971 in the Philadelphia Church; 1972 in the St. Erik International Fair (known today as Stockholm International Fairs) in Älvsjö, 1975 in the St. Erik International Fair and in 1991 at the Stockholm Globe Arena. The King of Sweden hands over the prize to the laureate/s.