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Ozone layer prevents most harmful wavelengths of ______ light from passing through the earth’s atmosphere
- a)Ultraviolet
- b)Gama violet
- c)Beta violet
- d)None
Correct answer is option 'A'. Can you explain this answer?
Most Upvoted Answer
Ozone layer prevents most harmful wavelengths of ______ light from pas...
The "Dobson unit", a convenient measure of the amount of ozone overhead, is named in his honor. The ozone layer absorbs 97 to 99 percent of the Sun's medium-frequency ultraviolet light (from about 200 nm to 315 nm wavelength), which otherwise would potentially damage exposed life forms near the surface.
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Ozone layer prevents most harmful wavelengths of ______ light from pas...
Understanding the Ozone Layer
The ozone layer is a crucial component of Earth's atmosphere, primarily composed of ozone (O₃) molecules. It resides in the stratosphere and serves as a protective shield against harmful radiation.
Protection Against Ultraviolet Light
- The ozone layer absorbs most of the sun's harmful ultraviolet (UV) radiation, particularly UV-B and UV-C rays.
- UV light has shorter wavelengths than visible light, which makes it more energetic and potentially harmful to living organisms.
Consequences of UV Radiation
- UV radiation can lead to skin cancer, cataracts, and other health issues in humans.
- It also affects ecosystems, harming marine life and terrestrial plants.
Importance of Ozone Layer Preservation
- Human activities, such as the release of chlorofluorocarbons (CFCs), have historically depleted the ozone layer.
- International efforts, like the Montreal Protocol, aim to protect and restore the ozone layer to safeguard life on Earth.
Conclusion
In summary, the correct answer is option 'A' because the ozone layer is vital in blocking most harmful wavelengths of ultraviolet light, thereby protecting living organisms and ecosystems from its damaging effects.
The ozone layer is a crucial component of Earth's atmosphere, primarily composed of ozone (O₃) molecules. It resides in the stratosphere and serves as a protective shield against harmful radiation.
Protection Against Ultraviolet Light
- The ozone layer absorbs most of the sun's harmful ultraviolet (UV) radiation, particularly UV-B and UV-C rays.
- UV light has shorter wavelengths than visible light, which makes it more energetic and potentially harmful to living organisms.
Consequences of UV Radiation
- UV radiation can lead to skin cancer, cataracts, and other health issues in humans.
- It also affects ecosystems, harming marine life and terrestrial plants.
Importance of Ozone Layer Preservation
- Human activities, such as the release of chlorofluorocarbons (CFCs), have historically depleted the ozone layer.
- International efforts, like the Montreal Protocol, aim to protect and restore the ozone layer to safeguard life on Earth.
Conclusion
In summary, the correct answer is option 'A' because the ozone layer is vital in blocking most harmful wavelengths of ultraviolet light, thereby protecting living organisms and ecosystems from its damaging effects.
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