Geology and Human Affairs 1014 week 9
Geology and Human Affairs 1014 week 9 GEOL 1014 - 0-61920
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This 2 page Class Notes was uploaded by Ann McCarty on Saturday October 15, 2016. The Class Notes belongs to GEOL 1014 - 0-61920 at Oklahoma State University taught by Priyank Jaiswal in Fall 2016. Since its upload, it has received 13 views. For similar materials see Geology and Human Affairs Lecture in Geology at Oklahoma State University.
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Date Created: 10/15/16
10.10.16 Case Histroy Earth’s planet in space - Asteroids - Meteoroids - Comets - Figure 12.3 Early Evolution of Earth - Creatures are good for Earth because they can change the topography. Aeral Bursts and Impacts - Oxygen is what makes Earth different causing meteors to burn. - Figure 12.? Impact crater - Figure 12.6a - Volcanoes also have crates - Hazard because the likelihood of it happening again. - Looking to history for evidence of craters is hard because of cng in topography - Figure 12. ? Mass Extinction - Leads to this because of the amount of cng that it brings about. - Mosquitoes are the good ex: of evolving species. Extraterrestrial Impact 12,900 yrs/ago. K-T Boundary Mass Extinction - Figure 12.12 Environmental Risk of Impact - Figure 12.13 Minimizing Imjpact Hazard Critical Thinking 10.12.16 12.1:B, 12.2:A, 12.3:B, 12.4:A, 12.5:B, 12.6:C, 12.7:D, 12.8:D, 12.9:B, 12.10:B Chapter 13: Water Resources Case History: Long Island - No matter where you drill for water, you will find ground water, thought it may not be good for you to drink. o “Sweet water” refers to Well Water. - Rain water is most important source of freshwater. - Ice/ Glaciation etc. and rivers is where most freshwater is at. - We are in a Net deficiency for the water budget. - Sewage plays a big part of this as far as needing a place for it to go and nature not being able to decompose it fast enough. - Figure 13.2 Water” A global perspective - Cyclic nature - Water will become the most valuable resource. - There is more potential use than there is supply when it comes to water. - Water is either held up in ice or salt. - Ppl are surviving off of 1% of suitable water. Global Water Cycle - Table 13.1 - Using osmosis to take salt out of water. o Expensive and ecosystem concerns. o Ecosystems rely on the salt water to thrive. o Resident time: water that is not stagnant, Average time: for drop of water: a thousand years. For atmosphere: 9 days Groundwater: it is the most stagnant.
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