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The sequence from vapour to oceans and oceans to gas dissolution strengthens which idea?

Answer and explanation

Correct answer: The hydrosphere formed from atmospheric water vapour and later affected the atmosphere by dissolving gases

As the early Earth cooled, water vapour in the atmosphere condensed, fell as rain, and formed oceans. The oceans later dissolved gases such as carbon dioxide, thereby changing the composition of the atmosphere. Thus, the hydrosphere first formed from the atmosphere and then began to influence it. Option B is incorrect because dissolution of gases did alter atmospheric composition. Exam tip: remember the sequence—water vapour → rain/oceans → dissolution of gases.

Related tags

Earth EvolutionEarly AtmosphereHydrosphereOcean FormationGas DissolutionCarbon DioxideEvolution Of The EarthThe Origin And Evolution Of The Earth

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