Water vapor is a greenhouse gas that is present at higher concentrations in the atmosphere than CO2. Why then is CO2 considered to be the primary greenhouse gas?
A. Water vapor has a much longer residence time in the atmosphere than CO2.
B. Warming is amplified by additions of CO2that decrease the amount of water vapor that the atmosphere can hold.
C. Warming is amplified by additions of CO2that increase the amount of water vapor that the atmosphere can hold.
D. Lower levels of water vapor drive increases in CO2 concentrations.
E. Water vapor concentrations are decreasing while CO2 concentrations are increasing.
Answer: C
You might also like to view...
What is the polar jet stream and where is it found? Does the position of the polar jet stream change during the year?
What will be an ideal response?
Station #2:
Which provides a longer history of earth's temperatures?
A) ice B) rocks C) both provide the same history D) neither provides a history
The ozone layer is found within the stratosphere
Indicate whether the statement is true or false