Arctic Ozone Hole. The Ozone Layer The ozone layer is a layer in Earth's atmosphere which contains relatively high concentrations of ozone (O3). This layer absorbs 97-99% of the sun's high frequency ultraviolet light, which is potentially damaging to life on earth.
Nettie Stevens: Scientist Extraordinaire and STEM Icon; a Steampunk Feministâs Perspective Nettie Stevens If you want an example of the true grittiness and resourcefulness of the American spirit, you canât go past Nettie Stevens.
In the intriguing setting of Alaska's Five Finger Lighthouse, Sue Henry creates another well-written mystery. Jessie looks forward to joining a crew of volunteer workers, but on her way to the lighthouse, she becomes acquainted with a young woman named Karen who is running from a man who has abused her in the past.