T1R1O1P3O1P3A1U1S1E1S1
15 points
TROPOPAUSES is validvalid
TROPOPAUSE, [n]
TROPOPAUSE, the level of the atmosphere where the troposphere ends and stratosphere begins [n]
TROPOPAUSE, [n]
TROPOPAUSE, the level of the atmosphere where the troposphere ends and stratosphere begins [n]