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Author Question: What had the most influence in irreversibly changing Earth's atmosphere? a. Formation of carbonic ... (Read 45 times)

Capo

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on: Aug 22, 2018

What had the most influence in irreversibly changing Earth's atmosphere?
  a. Formation of carbonic acid in the ocean
  b. Production of oxygen from photosynthesis
  c. Chemical breakup of water vapor by sunlight
  d. Fluctuation in the atmospheric composition
  e. Anaerobic respiration by deep-sea organisms



Question 2

Which condition of early Earth contributed to biosynthesis?
  a. oxygen-depleted atmosphere
  b. ozone in the upper atmosphere
  c. oxygen in the atmosphere
  d. extreme high temperatures
  e. aerobic conditions



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kusterl

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Reply #1 on: Aug 22, 2018
Answer to Question 1

b

Answer to Question 2

a


Capo

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Reply 2 on: Aug 22, 2018
Great answer, keep it coming :)

xiazhe

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Reply 3 on: Yesterday
Excellent

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