MCQ Detailed View

The stratosphere is the second major layer of Earth's atmosphere, located above the troposphere and below the mesosphere. It generally extends from about 15 kilometers to 35 kilometers above the Earth's surface.

This atmospheric layer is important because it contains the ozone layer, which absorbs the majority of the Sun's harmful ultraviolet (UV) radiation. This absorption protects life on Earth by reducing the amount of UV radiation that reaches the surface, preventing damage to living organisms such as skin cancer in humans and harm to plant life.

Unlike the lower troposphere, where weather occurs, the stratosphere is relatively stable with fewer air movements and clouds. Temperatures in the stratosphere actually increase with altitude due to the ozone layer absorbing UV radiation.

The exact altitude range of the stratosphere can vary slightly depending on geographical location and season, but the accepted range is approximately 15 km to 35 km.

Understanding the altitude range and function of the stratosphere is important for students studying physics and atmospheric science. It helps explain how Earth's atmosphere protects life and maintains environmental balance.