Question

what acts as a lid to the lowest part of our atmosphere? a tropopause b troposphere c stratosphere d stratopause continue question 4 of 9

Explanation:

The troposphere is the lowest layer of the atmosphere. The tropopause is the boundary (like a lid) between the troposphere and the stratosphere above it. The stratosphere is a layer above the troposphere, and the stratopause is the boundary above the stratosphere.

Answer:

A. tropopause