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Earth during Hadean Eon

A. Oxygen-rich atmosphere
B. Liquid water on the surface
C. Presence of life forms
D. Molten surface and heavy bombardment

User Nerve
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1 Answer

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Final answer:

During the Hadean Eon, early Earth had a molten surface, heavy bombardment, no oxygen-rich atmosphere, and liquid water on the surface, but no presence of life forms.

Step-by-step explanation:

The conditions of early Earth at the time that life first evolved during the Hadean Eon can be summarized as follows:

  • Molten surface and heavy bombardment: Earth was initially molten and experienced intense impact events.
  • No oxygen-rich atmosphere: There was no significant amount of oxygen in the early Earth's atmosphere during this period.
  • Liquid water on the surface: Geologic structures such as lava pillows and stromatolites indicate the presence of liquid water on the surface.
  • No presence of life forms: Life had not yet emerged during the Hadean Eon.

User Jovan
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