Earth's earliest atmosphere was lacking in
A) carbon dioxide.
B) hydrogen.
C) free oxygen.
D) photosynthesis.
Correct Answer:
Verified
Q7: Earth's original atmosphere was
A)very similar to the
Q8: What is the significance of the ozone
Q9: Ozone in the Earth's upper atmosphere
A)filters incoming
Q10: The process of photosynthesis is important because
Q11: Fresh water enters the ocean by runoff
Q13: The origin of Earth's primitive ozone layer
A)is
Q14: Earth's earliest atmosphere was most likely composed
Q15: Why are temperature fluctuations greater over land
Q16: Going from continental land toward the deep
Q17: What impact does the formation of the
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