Multiple Choice
The early Earth's reducing atmosphere probably contained all of the following except
A) carbon dioxide.
B) water.
C) oxygen.
D) hydrogen sulfide.
Correct Answer:

Verified
Correct Answer:
Verified
Related Questions
Q2: A scientist is studying endosymbiosis in cells.This
Q5: If a scientist found very high concentrations
Q11: During the snowball earth temperatures at the
Q13: Vascular plants appeared about 450 million year
Q14: Which of the following was produced in
Q19: Why is there free oxygen in the
Q20: How did humans colonize the New World?<br>A)Early
Q20: True multicellularity is a major characteristic of<br>A)all
Q21: A scientist is analyzing air bubbles trapped
Q21: The age of the Earth according to