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.
William Henry Hastie, Jr. (November 17, 1904 â April 14, 1976) was an American, lawyer, judge, educator, public official, and advocate for the civil rights of African Americans. He was the first African American to serve as Governor of the United States Virgin Islands, as a federal judge, and as a federal appellate judge. 1 Early life.