how the earth is made
Answers
The crust of the carth floats on the Eastsemi-liquid rock material of asthenosphere. Due the heat generated in the Interior of the earth the radio active waves exert pressure towards the surface of the carth. As a result, the crust of the earth was disintegrated into large piece sand main 7 Lithospheric plates were formed SeaThere are seven main Lithospheric plates (1) Paciflc plate, (2) North American plate, (3) South American plate. (4) Eurasian plate, (5) African plate. (6) Indo-Australian plate and (7) Antarctica plate -> At some places, these plates drifting apart. and so these are called Divergent plates Some plates are coming closer and these are known as Convergent isFaults take place due to the process of diver- gence. while folds occur due to the process of convergence. Due movements of these plates, the shapes of the continents are changing The present landforms of India are formed due to such movements This process of moving into the opposite direction is responsible for all the seismic and volcanic processes Wherever these drifting plates collide with each other, mountains are formed MirzapurWherever these plates drift apart, they form fissures over the land and in the ocearn beds. Continents situated over these plates are constantly drifting Such plates are called Transform BoundaryBefore millions of years. India was a part of vast landform called Gondwanaland. It includedof the present continents of South America. Africa, Arabia, India, Australia and Antarctica. >In course of time, the Indo-Australian plate separated from Gondwana land and started drifting towards north. Its northern part slid down the Eurasian plate before about five crore years. Due to the collision between these two plates. folds were formed in the stratified rocks at the bottom of the Tethys Sea. As a result, the Himalayas and the Central Asian Mountain System came into existence. And with that a large depression also came into existence toOc the south of Himalayas. With the passing of time, the rivers from southinte and north deposited alluvium which formed the plain of north India. When Himalaya was emerging, a large volcanicEur explosion occurred in the north-western part of the peninsular India. Due to this explosion its western part of the plateau broke down and submerged. This led to the formation ofTh Arablan Sea. The Western Ghats became more distinct due to this submergence.