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Why can the importance of water vapour in hydrosphere formation be considered two layered?

Answer and explanation

Correct answer: It was first part of atmosphere and then came to surface as rain

Option A is correct because water vapour played two connected roles during Earth’s development. First, it was present in the early atmosphere as a gaseous product released through volcanic activity and other processes. As the young Earth cooled, the vapour condensed, clouds formed, and prolonged rainfall transferred water from the atmosphere to the surface. Water then accumulated in basins and helped form the hydrosphere. The other choices confuse water vapour with unrelated components: the core is metallic, the Moon has a different origin, solar wind is a stream of charged particles, and ozone is a form of atmospheric oxygen. Thus the answer describes the atmospheric-to-surface transition.

Related tags

Water-VapourHydrosphereAtmosphereEarth-EvolutionEvolution Of The EarthThe Origin And Evolution Of The EarthGeographyClass 11 Mcq

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