What is the layer high above the earth that contains ozone and protects us from ultraviolet light?

What is the layer high above the earth that contains ozone and protects us from ultraviolet light?

• A. Stratosphere
• B. Ionosphere
• C. Ozone Layer
• D. Troposphere

Answer: (C)

Ultraviolet radiation from the sun is harmful, but ozone in the upper atmosphere absorbs most of it. The region most closely tied to this protective role is the ozone layer, a zone within the stratosphere where ozone concentration is highest. The stratosphere is the broader atmospheric layer that contains this ozone-rich region, while the ozone layer specifically names the part that blocks UV light. The other options refer to different parts of the atmosphere: the troposphere is the lowest layer where weather happens, and the ionosphere is a higher, charged region important for radio waves. So the term that best identifies the protective layer with ozone is the ozone layer.

Ultraviolet radiation from the sun is harmful, but ozone in the upper atmosphere absorbs most of it. The region most closely tied to this protective role is the ozone layer, a zone within the stratosphere where ozone concentration is highest. The stratosphere is the broader atmospheric layer that contains this ozone-rich region, while the ozone layer specifically names the part that blocks UV light. The other options refer to different parts of the atmosphere: the troposphere is the lowest layer where weather happens, and the ionosphere is a higher, charged region important for radio waves. So the term that best identifies the protective layer with ozone is the ozone layer.