Which of the following chemical was likely to be absent at the time of origin

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Which of the following chemical was likely to be absent at the time of origin of life?

Options

(a) oxygen
(b) water
(c) hydrogen
(d) ammonia

Correct Answer:

oxygen

Explanation:

No explanation available. Be the first to write the explanation for this question by commenting below.

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Topics: Evolution (132)
Subject: Biology (4253)

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