The correct answer is Methane. Recent increases in methane in the atmosphere have contributed to rising water vapor levels, which can lead to the formation of noctilucent clouds in the mesosphere.
The Atmosphere Quick Check
5 of 55 of 5 Items
Question
Which gas has recently increased in the mesosphere, creating a rise in water vapor which has led to the formation of high-altitude clouds that are visible at night?(1 point)
Responses
Carbon Dioxide
Carbon Dioxide
Methane
Methane
Ozone
Ozone
Hydrogen
1 answer