Question

1) explain movements of earth's crust very lengthy with diagrams

Answer 1

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Here is your answer

Movements of Earth's crust

Introduction

The shapes and positions of the continents may seem fixed at time scale of human experience however when you look at how old the earth is, continents have moved , collided, merged and then been razed to the ground oceans have formed and dried up. Valleys have been carved and dried up and so on during the course of Earth's eventful history


Explanation

In the early 20th century a German metrologist and geophysics Alfred vagina introduced the theory of continental drift to describe the partially explain the present arrangement of continents and ocean basin ski postulated a massive supercontinent which is called pangea Greek word for hole and as having existed 220 million years ago and then breaking apart into several large sections. He suggested that these sections moved away from each other . Over millions of years, some continents collided with each other they are still moving around.

Pangea is a hypothetical continent from which present continents are originated by the drift of mesozoic Era to the present.

1)LAURENSIA

North America Greenland Eurasian​ and North Indian subcontinent

2) GONDWANA

South America , Africa, Madagascar, India , Arabia , Malaysia , west indies , Australia and Antarctica

-> these two blocks for separated by a long Shallow inland sea called

TETHYS SEA

220 MILLION YEARS AGO

PANGEA- LAND
PANTHALASSA- WATER

200 MILLION YEARS AGO

LAURENCIA, INDIA , GONDWANA

135 MILLION YEARS AGO

AFRICA INDIA SOUTH AMERICA SOUTH ATLANTIC

10 MILLION YEARS AGO

NORTH AMERICA NORTH ATLANTIC EUROPE ASIA

CONCLUSION

it took millions of years for the continents to reach the present shapes and positions on the Global event today many of the continents are moving very slowly pushing each other we can say that just like the phenomenon of the place of the earth moving every time by this we can conclude that our continents are still moving

HOPE IT HELPS YOU

Answer 2

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