Author name: Rohit Shukla

Part II:- Understanding why earthquakes tsunami and volcano occur:- PLATE TECTONICS THEORY Historically all spectacular natural phenomena like a rainbow, rising and setting of the sun on the horizon, solar and lunar eclipse, earth tremors, volcano, geysers(sulphur spring) were so awe-inspiring to the early tribal that out of the fear of the wrath of nature […]

Part I- Introduction and key definitions The phenomena of earthquake volcanic eruptions and tsunami are the three most important geological processes which on the one hand cause enormous human and economic disaster but on the other hand are very interesting from the scientific point of view. It provides us a very useful window to study

Part II- THE INTRICATE LAYERED INNER STRUCTURE OF EARTH. We take for granted the shape of our world and the position of the continents— the familiar geography that seems as eternal as the order of the planets. But this arrangement is temporary: it isn’t how the planet has been and it isn’t how it will

Part- I: Early theories of the origin of the earth Earth and sky, woods and fields, lakes and rivers, the mountain and the sea, are excellent schoolmasters, and teach some of us more than we can ever learn from books. By John Lubbock ( A scientist who coined the terms paleolithic and neolithic) In order