Why is the ozone layer beneficial in the upper atmoshere?

3 Answers

  • 1 month ago

    Actually it's in the MIDDLE atmosphere, not the UPPER atmosphere.

    It's beneficial because it absorbs a lot of the UV radiation, 

    so that the sunlight reaching earth's surface is not too damaging to living organisms.

  • 2 months ago

    it absorbs light in the UV range and thus filters it from ever reaching the earth at its original intensity.  Kind of the reverse of greenhouse gases in a way.  Greenhouse gases absorb lower energy, long-wave light (infrared range), which is the range of lower temperature light sources (like the ground). The sun, being much hotter, emits higher energy light including a large amount of UV light (more energetic than visible light), and that light is powerful enough to cause genetic damage to living organisms.  Fortunately, there is an ozone layer to filter a lot of  that energy out before it reaches us.

    Ozone at ground level is useless as a filter though, sort of a case of closing the barn door after the horses got out.  On top of that, ozone is quite reactive so causes us problems down here at the surface. So, we get the harm but none of the benefit.

  • ?
    Lv 6
    2 months ago

    It protects against harmful UV light.

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