ENV 151 Study Guide - Quiz Guide: Outgassing, Radiant Energy, Hadean
13 Dec 2018
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Chapter 12: explain why earth is just the right size. If earth were closer to the sun it would be too hot to sustain life, whereas if it were further from the sun it would be too cold. Supernova: briefly describe the formation of the planets from the solar nebula. After the supernova explosion, there was a cloud of gas and dust. The nebular cloud begins to contract and become a flattened, rotating cloud. Over time, planetesimals form by way of accretion and these planetesimals eventually become planets: describe the conditions on earth during the hadean. Outgassing is the release of gases from the earth and was responsible for creation of the early atmosphere. Volcanoes serve that role today: identify the most abundant gases that were added to earth"s early atmosphere through the process of outgassing. Carbon dioxide is readily soluble in seawater so oceans can dissolve atmospheric carbon dioxide into them.
