Exploring Earth's Atmosphere

The vertical structure of the Earth's atmosphere consists of five layers based on temperature.

The lowest layer of the atmosphere is called the troposphere. It is derived from the Greek word tropos, meaning 'a turn or change,' and implies an overturning of air resulting from vertical mixing and turbulence.

The troposphere constitutes approximately 85% of the mass of the Earth's atmosphere.

<p>The depth of the troposphere varies considerably, ranging from 8 to 20 km (3.6 to 12 mi), with a mean of about 15 km (9 mi).</p> Signup and view all the answers

<p>The altitude at which the troposphere ends depends on various factors, such as location and atmospheric conditions.</p> Signup and view all the answers