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What is the optimum PH soil for rice cultivation?

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What is the pulsating theory of the universe?

A A cosmological model that combines both the Big Bang and the Big Crunch as part of a cyclical event
B An expansion and contraction of the star as a whole in a regular periodic pulsation
C All the matter of the universe was present in a single place in the form of hot and dense fireball
D Counting of the galaxies is constant and new galaxies which are forming continuously are filling the empty spaces

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.

Who is considered as the father of economics?

A Alfred Marshall
B Adam Smith
C David Ricardo
D Esther Duflo

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.

Which country recently joined NATO in 2024?