SOLAR SYSTEM

Detailed explanation-1: -Thus Photosphere is not a layer of atmosphere.

Detailed explanation-2: -The stratosphere is a layer of Earth’s atmosphere.

Detailed explanation-3: -The stratosphere starts just above the troposphere and extends to 50 kilometers (31 miles) high. The ozone layer, which absorbs and scatters the solar ultraviolet radiation, is in this layer. The thermosphere starts just above the mesosphere and extends to 600 kilometers (372 miles) high.

Detailed explanation-4: -Earth’s atmosphere is composed of about 78% nitrogen, 21% oxygen, and one percent other gases. These gases are found in atmospheric layers (troposphere, stratosphere, mesosphere, thermosphere, and exosphere) defined by unique features such as temperature and pressure.