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Which place is considered most favourable for the earliest origin of life on Earth?

Answer and explanation

Correct answer: Oceans

The direct answer is A: oceans are considered the most favourable place for the earliest origin of life. Early Earth was very different from today. The atmosphere had little or no free oxygen, the surface was hot and volcanic, and water provided a comparatively stable medium in which chemical substances could interact. Oceans also offered protection from some harsh surface conditions and allowed simple aquatic organisms to survive and evolve. Scientists continue to study the exact pathway, so this answer refers to the accepted textbook view, not an absolute observation of the first organism. Option A works because water is essential for the chemical processes of life and early oceans provided a suitable environment. Option B is wrong because deserts are extremely dry and generally unsuitable for the earliest aquatic chemical development. Option C is wrong because Himalayan peaks formed much later and are cold, high and harsh. Option D is wrong because the upper atmosphere lacks the stable watery environment needed for early life. Exam cue: in origin-of-life questions, connect the earliest life with water and oceans.

Related tags

Origin Of LifeOceanEarly Life

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