Which of the Following Is Not True About the Troposphere

Multiple Choice

Which of the following is not true about the troposphere?

A) The altitude of the upper limits of the troposphere (the tropopause) varies with season and latitude.
B) Approximately 90% of the total mass of the atmosphere is within the troposphere.
C) Temperatures increase with altitude in the troposphere because the higher in altitude,the closer to the sun.
D) The bulk of all water vapor occurs in the troposphere.
E) An average temperature of -57°C (-70°F) defines the tropopause.