Question

how did the lithosphere formed

Answer 1

As the earth cooled, there was no atmosphere to trap the heat. The surface cooled off fast due to the cold temperature of space (like how the top of coffee cools off when exposed to the air). This created a layer of cooled rock that solidified into the crust. Differences in magma created two types of the lithosphere, oceanic and continental, characterised by the basalt in oceans and granite in the continents.

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Answer 2

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• Lithosphere is the solid crust or the hard top part of the earth.

• It is made up of rocks and minerals and covered with thick layer of soil.

• It is not smooth surface but has high mountains, plateaus, low plains deep valleys and very deep basins which are filled with water.

• Many of these features are shaped by wind and water.

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