EARTHSS 5 Study Guide - Midterm Guide: Sulfur Dioxide, Solar Wind, Radioactive Decay
15 Jan 2017
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Definition of air: mixture of gases and suspended particles that surrounds earth. Definition of climate: average weather and variability of the atmosphere. Defi(cid:374)itio(cid:374) of a(cid:374) (cid:858)ae(cid:396)osol(cid:859): ti(cid:374)y li(cid:395)uid d(cid:396)oplets that a(cid:396)e so s(cid:373)all they (cid:396)e(cid:373)ai(cid:374) suspe(cid:374)ded i(cid:374) the ai(cid:396) Smoke, ice-crystals, dust, sea-salt crystals, volcanic emissions, industrial pollution. Gases that made up the first atmosphere and how were they lost: Composed of hydrogen (h) & helium (he) They were lost because h & he were not retained by gravity and solar wind & collisions. Gases that made up the second atmosphere and where they came from: Carbon dioxide (co2), water vapor, (h2o) and sulfur dioxide. Atmosphere can only hold a small fraction of water vapor. Water vapor condensed intro clouds and overtime formed the ocean. Third atmosphere, containing o2, was generated by life. Co2 removed from atmosphere by: biosphere, dissolution in oceans, chemical weathering. Co2 dissolves in rainwater producing a weak carbonic acid (acid rain) that.
