Final answer:
The correct sequence from the ground up is troposphere, tropopause, stratosphere. The troposphere is the weather-active lowest layer, the tropopause is a cold boundary layer, and the stratosphere contains the protective ozone layer.
Step-by-step explanation:
The correct sequence of the atmosphere's layers from the ground up is troposphere, tropopause, stratosphere. The troposphere is the lowest level of the Earth's atmosphere, where most weather phenomena occur, and it extends from Earth's surface up to an altitude of about 11-13 km (7-8 miles). The temperature in the troposphere decreases with altitude until it reaches the tropopause, a boundary layer that marks the end of the troposphere and the beginning of the stratosphere. The tropopause is the coldest part of the atmosphere and serves as a cap that limits the upward mixing of tropospheric air. Above the tropopause is the stratosphere, which extends up to about 50 kilometers above the surface and contains the ozone layer that filters harmful ultraviolet radiation.