Ground-level ozone is different from the ozone layer in the stratosphere because:
Ground-level ozone is beneficial for human health, while stratospheric ozone is harmful.
Ground-level ozone is a secondary pollutant, while stratospheric ozone is a primary pollutant.
Ground-level ozone is harmful to human health, while stratospheric ozone protects from UV radiation.
Ground-level ozone is less reactive than stratospheric ozone.
Ground-level ozone is a harmful pollutant, while stratospheric ozone absorbs harmful UV radiation, protecting life on Earth.
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