70 likes | 183 Views
Southern Cal fires Oct 29, 2007 Burned areas are red. Julie Gerberding, Director, Center for Disease Control And Prevention. (testimony redacted by the White House) October 23, 2007 (Air Pollution Health Effects)
E N D
Southern Cal fires Oct 29, 2007 Burned areas are red
Julie Gerberding, Director, Center for Disease Control And Prevention (testimony redacted by the White House) October 23, 2007 (Air Pollution Health Effects) …Of particular concern is the impact of increased temperature and UV radiation on ozone formation…
Na = 6.02 x1023 Lorenzo Romano Amedeo Carlo Avogadro
How many stars in the observable universe? How many water molecules In one small sip (2ml)?
Banded iron formation BIF (only found in rocks before global atmosphere became O2-rich (about 2.2 Byr ago)