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Home Q & A Board Biology-Related Homework Help General Biology
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rickyfa18 rickyfa18
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6 years ago
Which was a possible source of high energy on early Earth that likely contributed to the origin of life?
  a. redox energy
  b. gamma radiation
  c. volcanic activity
  d. infrared radiation
  e. geothermal energy

Question 2

The atmosphere of early Earth is currently thought to have contained:a.
   methane, water, ammonia, nitrogen, and oxygen
  b. carbon dioxide, water, oxygen, nitrogen, and hydrogen
  c. carbon dioxide, ozone, nitric oxide, water, and hydrogen sulfide
  d. carbon dioxide, water, carbon monoxide, hydrogen, and nitrogen
  e. carbon dioxide, carbon monoxide, water, hydrogen, and nitric oxide
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letsdothis545letsdothis545
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6 years ago
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rickyfa18 Author
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6 years ago
I appreciate what you did here, answered it right Smiling Face with Open Mouth
terriroberts96
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Yesterday
this is exactly what I needed
macbookpro1
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2 hours ago
Thanks
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