The Highest Temperatures in the Atmosphere Occur in the ________

The highest temperatures in the atmosphere occur in the ________ because ________.

A) troposphere infrared radiation from the ground heats this layer more than any other layer
B) stratosphere methane is such an effective greenhouse gas
C) thermosphere carbon dioxide has accumulated to very high levels in this layer
D) thermosphere it is in intense contact with high energy solar radiation
E) mesosphere high intensity solar radiation causes strong chemical reactions with ozone,and this heats the layer to very high temperatures.