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#Question id: 4943


In what way were conditions on the early Earth of more than 3 billion years ago different from those on todayʹs Earth?

#XL - S Microbiology
  1. only early Earth had water vapor in its atmosphere.

  2. Only early Earth was intensely bombarded by large space debris.

  3. Only early Earth had an oxidizing atmosphere.

  4. Less ultraviolet radiation penetrated Earthʹs early atmosphere.


Answer:- Option(s): 2


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