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Why would it be misleading to read carbon dioxide in early atmosphere like modern pollution?

Answer and explanation

Correct answer: It was an early gas linked with natural outgassing

The governing distinction is between a gas's natural geological origin in the early atmosphere and its later human-amplified pollution role. During Earth's early evolution, volcanic outgassing and related geological processes supplied carbon dioxide naturally, along with other gases. It was therefore part of the developing atmospheric system, not evidence of industrial pollution. Option A is correct because it places carbon dioxide in its proper evolutionary context. Option B is factually false, since carbon dioxide was present; option C confuses two chemically different gases; and option D incorrectly treats a gaseous atmospheric constituent as metallic core material. The same gas can have different significance in different historical contexts.

Related tags

Carbon DioxideEarly AtmosphereVolcanic OutgassingEvolution Of The EarthThe Origin And Evolution Of The EarthGeographyClass 11 Mcq

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