Essay
The Earth has had three atmospheres since its formation 4.54 Ga ago.Contrast the Earth's first atmospheric gases with the Earth's current atmosphere.What gas,essential for life,was missing in the first atmosphere? What led to its emergence?
Correct Answer:

Verified
When the Earth first formed,4.56 Ga ago,...View Answer
Unlock this answer now
Get Access to more Verified Answers free of charge
Correct Answer:
Verified
View Answer
Unlock this answer now
Get Access to more Verified Answers free of charge
Q41: Most atmospheric ozone occurs in which layer
Q42: The boundary between two bodies of air
Q43: As an air mass rises,it generally experiences
Q44: High-pressure systems are associated with weather that
Q45: Which layer of the atmosphere has the
Q47: Within the troposphere,what happens to pressure and
Q48: The two main mechanisms of rain and
Q49: Incoming solar energy is known as _.<br>A)
Q50: Prevailing surface winds are named for the
Q51: What is orographic lifting? How does this