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FSU / English / ENG 1000 / amplify fsu

amplify fsu

amplify fsu

Description

School: Florida State University
Department: English
Course: Introductory Earth Science
Professor: Yang wang
Term: Spring 2017
Tags: esc
Cost: 25
Name: Study Soup- ESC Chapter 23 Review Questions
Description: Study Soup Weekly Notes: Earth Science Chapter 23 Review Questions
Uploaded: 05/03/2017
1 Pages 76 Views 0 Unlocks
Reviews



What is positive feedback?




What is the ozone hole and how does it affect us?




Why do increased concentrations of greenhouse gases cause changes in global temperature and changes in the global hydrological cycle?



Study Soup Weekly Notes: Earth Science Chapter 23 Review Questions 1. Which gases are “greenhouse gases”? Why do increased concentrations of greenhouse gases  cause changes in global temperature and changes in the global hydrological cycle? a. Water vIf you want to learn more check out dana marie telesford
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apor (H. 2O) b. Carbon dioxide (CO. ...  c. Methane (CH. ...  d. Nitrous oxide (N. 2O) e. Ozone (O. ...  f. Chlorofluorocarbons (CFCs) g. Hydrofluorocarbons (incl. HCFCs and HFCs) h. Greenhouse gas – Wikipedia i. These gases trap infrared radiation and keep the lower atmosphere warm, somewhat as  a glass traps heat in a greenhouse 2. What is the ozone hole and how does it affect us? a. The ozone hole is a region where atmospheric ozone has been reduced substantially b. Ozone holes affect the ability of the atmosphere to shield the earth’s surface from  harmful ultraviolet radiation 3. What is positive feedback? What is negative feedback? Explain two feedback processes by which  increased evaporation might amplify or limit the effects of greenhouse gases on global climate.  Why do these two processes contribute to scientific uncertainty over how greatly greenhouse  has emission can alter the global climate? a. Positive feedback- enhances a process and amplifies its consequences b. Negative feedback- slows a process down or even reverses it c. Ex: warming or cooling due to changes in the concentration of greenhouse gases can be  amplified by positive or negative feedback mechanisms 4. Describe how carbon dioxide-induced global warming takes place, and how humans may be  responsible. What effects might global warming have of the earth system? a. Carbon dioxide mixes thoroughly with other gases in the lower atmosphere and remain  in the atmosphere for a long time. When carbon dioxide enters the atmosphere from a  surface or subsurface reservoir, it adds to the existing quantities of these gases and  causes the overall concentration of these gases to increase; the increase in  concentration of these gasses causes an increase in the greenhouse effect, and  therefore global temperature increases 5. If (or when) atmospheric concentrations of greenhouse gases double, what will be the likely  effects on global temperature, precipitation, evaporation, and runoff? a. the increase in concentration of these gasses causes an increase in the greenhouse  effect, and therefore global temperature increases

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