Examlex
Multiply and simplify where possible.
Smog
A type of air pollution characterized by a mixture of smoke and fog, often resulting from industrial emissions and vehicle exhaust.
Stratospheric Ozone
A layer of ozone molecules located in the Earth's stratosphere that absorbs and protects living organisms from the harmful effects of the sun's ultraviolet radiation.
Ultraviolet Radiation
Electromagnetic radiation with a wavelength shorter than that of visible light, but longer than X-rays, which can have effects on the skin such as sunburns and vitamin D synthesis.
Gamma Radiation
Electromagnetic radiation of high frequency and thus high energy, often emitted by radioactive materials.
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