AP BIOLOGY

Detailed explanation-1: -The remaining ozone (about 90%) resides in the stratosphere between the top of the troposphere and about 50 kilometers (31 miles) altitude. The large amount of ozone in the stratosphere is often referred to as the “ozone layer.”

Detailed explanation-2: -Stratosphere. The Stratosphere extends around 31 miles (50 km) down to anywhere from 4 to 12 miles (6 to 20 km) above the Earth’s surface.

Detailed explanation-3: -Stratosphere. The stratosphere extends from from 4-12 miles (6-20 km) above the Earth’s surface to around 31 miles (50 km). This layer holds 19 percent of the atmosphere’s gases but very little water vapor. In this region, the temperature increases with height.

Detailed explanation-4: -Stratosphere. Located between approximately 12 and 50 kilometers (7.5 and 31 miles) above Earth’s surface, the stratosphere is perhaps best known as home to Earth’s ozone layer, which protects us from the Sun’s harmful ultraviolet radiation.

Detailed explanation-5: -Stratosphere. The stratosphere is the second major strata of air in the atmosphere. It extends above the tropopause to an altitude of about 30 miles (50 km) above the planet’s surface. The air temperature in the stratosphere remains relatively constant up to an altitude of 15 miles (25 km).