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Earth Sciences
Marcel Danesi

ESS LECTURE 1 Midterm -multiple choice - short answer- choose 1. –Cheat sheet double sided - look at outlines Poster - ask what did you learn that you didn’t know before. What is interesting for you? Lec 1: OUTLINE Earth Science & Society Chapters 1 & 2 in your textbook • What does a geoscientist do? • What is geology? What types of evidence does it provide? • How does geology influence us? • What are the forces and processes affecting our planet? • How do geologists investigate geologic questions? (POTENTIAL SHORT ANSWER QUESTIONS) WHAT DOES GEOSCIENTISTS DO? -protect us from hazards, monitor earthquakes, flooding - look for groundwater to get water - search rocks for diamonds What is geology? • from the Greek γῆ, gê, "earth" and λόγος, logos, "study") • The science and study of the solid Earth and the processes by which it is shaped and changed. what people miss is TIME. Changes happen over time. Most processes go a longer process than human life - 4.56 billion years ago *** know this. It is the age of the earth****** - plate tectonics- the outside of the earth is shifting. Continents are moving. * 1.1 means it’s a testable section. BOX section. Learn this section that applies. - talks about how geo influences us. Most of us choose to live in ‘hazard and help?’. Like Alberta there are hazards of living near the rivers, like flooding. Rural area with farms, waters/flooding are good because it brings new nutrients to the area. In the nile, fertility depends on flooding for farms to be furtile. - hazard in the mountains are not good for anyone because it has sediment and deadly to live in -volcano is hazard and help. It can kill people but can help, and be helpful. Living their because it is very fertile. Ash comes out and helps plants grow. - right with hazard with arrows. This is an earthquakes. Earthquakes aren’t helpful because they are devastating. - hazard and help water and river- water is coming down from mountains. It has a water source because there is ice. Glacier is the source of the river. How can you have a glacier there? Elevation. Higher altitude has ice in the summers. If glaciers melt no water source - point: geo infl where we live, where we farm. It is positive and negative - the distribution of resources. - certain places you are more likely to find g
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