What term describes a mixture of gases surrounding the Earth? Troposphere Stratosphere Atmosphere Climate

## Step 1<br />The question asks for the term that describes the mixture of gases surrounding the Earth. The options provided are Troposphere, Stratosphere, Atmosphere, and Climate.<br /><br />## Step 2<br />The Troposphere and Stratosphere are layers of the Earth's atmosphere. The Troposphere is the lowest layer of the atmosphere, where weather occurs, and it contains about 75% of the atmosphere's mass. The Stratosphere is the layer above the Troposphere, where the ozone layer is located.<br /><br />## Step 3<br />The term "Climate" refers to the long-term weather patterns in a specific area, including temperature, humidity, wind, and precipitation. It does not describe the mixture of gases surrounding the Earth.<br /><br />## Step 4<br />The term "Atmosphere" refers to the mixture of gases surrounding the Earth. It is the layer of gases that protects life on Earth by absorbing ultraviolet solar radiation, warming the surface through heat retention (greenhouse effect), and reducing temperature extremes between day and night (the diurnal temperature variation).