Multiple Choice
The primary source of water vapor and carbon dioxide to the earth's early atmosphere was most likely ____.
A) photosynthesis
B) ozone reactions
C) outgassing
D) nitrogen chemical reactions
Correct Answer:

Verified
Correct Answer:
Verified
Related Questions
Q45: In the middle latitudes of the Northern
Q51: Would you expect wind speeds to DECREASE
Q52: Scientists pose hypotheses, or informed predictions about
Q53: The majority of atmospheric ozone (about 97%)
Q54: The letters H and L on a
Q57: Lines of latitude on a map represent
Q58: Describe how deforestation affects the concentration of
Q59: A tropical storm system with winds in
Q60: The earth's first atmosphere (approximately 4.6 billion
Q61: Methane (CH<sub>4</sub>), nitrous oxide (N<sub>2</sub>O), and chlorofluorocarbons