Which atmospheric zone supports the biosphere and is the region of principle weather activity?

Question

Quizplus · Accepted Answer

The troposphere is the lowest atmospheric zone, extending from Earth's surface up to an average of about 7 to 10 kilometers (4 to 6 miles) in altitude. It is where most weather occurs, and where the majority of Earth's biosphere is found, including plants and animals. The other atmospheric zones listed (thermosphere, mesosphere, stratosphere, exosphere) are located above the troposphere and do not support the biosphere nor experience significant weather activity.

Which Atmospheric Zone Supports the Biosphere and Is the Region