Unit 1 Introduction_ LabPractical Unique Earth (2 points)_ GPH 111_ Intro to Physical Geography (202

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2/21/24, 1:02 AM Unit 1 Introduction: LabPractical Unique Earth (2 points): GPH 111: Intro to Physical Geography (2024 Spring - A) https://canvas.asu.edu/courses/172892/quizzes/1298402 1/3 Unit 1 Introduction: LabPractical Unique Earth (2 points) Due No due date Points 2 Questions 4 Time Limit None Instructions Attempt History Attempt Time Score LATEST Attempt 1 3 minutes 2 out of 2 Score for this quiz: 2 out of 2 Submitted Feb 21 at 1:02am This attempt took 3 minutes.  Question 1 0.5 / 0.5 pts This lab practical require that you have watched the GPH 111 lecture on Earth as a Unique System (see link with all the rest of the lecture). You will be asked to watch a video that relates to different aspects of Earth's uniqueness that are discussed in the lecture. You will be given some background and then you will have to answer a multiple-choice question linking the video to some aspect of Earth's uniqueness as a planetary system. In the GPH 111 lecture, Earth as a Unique System, you learned about many different aspects of the planet that are unique in our solar system. Please watch (or even skim) this ultra-high definition video (http://links.asu.edu/111LP_UniqueAuroraISS) of Aurora (northern and southern lights) as seen from the International Space Station. QUESTION: What aspect of Earth uniqueness generates the Aurora (northern or southern lights) effect?

2/21/24, 1:02 AM Unit 1 Introduction: LabPractical Unique Earth (2 points): GPH 111: Intro to Physical Geography (2024 Spring - A) https://canvas.asu.edu/courses/172892/quizzes/1298402 2/3 Earth's particular gravitty Earth's ozone layer in the troposphere Correct! Earth's magnetosphere Earth's ozone layer in the stratosphere Towards the middle of the Earth as a unique system presentation, the magnetosphere was emphasized as a key reason for our planet's habitability. The magnetosphere protects Earth from incoming solar radiation. In the case of the auroras (northern and southern lights), highly charged particles emitted from the sun (typically by solar flares) are able to make it through the magnetosphere at the poles. These charged particles then collide with the upper atmosphere and these collisions result in light bursts or photons.  Question 2 0.5 / 0.5 pts Correct! Earth's liquid water Earth's magnetosphere Earth's ozone layer Earth's particular gravitty Towards the start of the Earth as a unique system presentation, the nature of Earth's liquid water was emphasized. While other bodies in the solar system contain solid water, the fact that Earth is dominated by liquid water (clouds, oceans, lakes, rivers, groundwater) is a critical aspect of our planet's habitability. Liquid water facilitates the biochemical reactions that allow life.  Question 3 0.5 / 0.5 pts In the GPH 111 lecture, Earth as a Unique System, you learned about many different aspects of the planet that are unique in our solar system. Please watch (or even skim) this video of stormscapes (http://links.asu.edu/111LP_UniqueStormscapes) -- focusing on the clouds. Question: What unique aspect of Earth's system is displyed in this stunning video? The topic of drifts in the rotational axis of Earth is one of many topics that just cannot be squeezed into the GPH 111 Earth as a Unique System lecture. There's just so much special about Earth. There's a pool of questions where students are given questions randomly ... and you have lucked out. You get to read a bit about very recent changes in the rotational axis of Earth. There's a popular story written up nicely by a journalist (https://canvas.asu.edu/courses/172892/files/77690546? wrap=1) , and there's a nerdy research article written up poorly by scientist

2/21/24, 1:02 AM Unit 1 Introduction: LabPractical Unique Earth (2 points): GPH 111: Intro to Physical Geography (2024 Spring - A) https://canvas.asu.edu/courses/172892/quizzes/1298402 3/3 there have been no recent changes to Earth's axis of rotation; it is all just disinformation from scientists changes in the location of humans moving to urban centers changes to plate tectonic major earthquakes Correct! changes in the location of water on Earth The research is pretty complicated, dealing with melting of glaciers and shifting of the location of the water in its liquid form. However, at the most basic level, the location of water has changed due to glacial melting, and its very possible that this has been due to human activities. Please do not lose any sleep at night over this!  Question 4 0.5 / 0.5 pts Earth's magnetosphere explains the faint sun hypothesis. Correct! Rock decay on Earth led to the absorption of carbon dioxide in the products of rock weathering. Put another way, limestone and dolomite rocks contain carbonate. Calcium carbonate (CaCO3) and magnesium carbonate (MgCO3) thus store carbon dioxide. Over very long periods of time, the slow decrease in carbon dioxide could have kept the Earth from overheating as the sun gradually increased its output. Earth's ozone layer in the stratosphere explains the faint sun hypothesis. Earth's ozone layer in the ionosphere explains the faint sun hypothesis The articles explain about the Faint Young Sun Paradox, giving more detail than that provided in lecture. Quiz Score: 2 out of 2 (https://canvas.asu.edu/courses/172892/files/77690549?wrap=1) . Pick one and give the best answer to this question. Why has the rotational axis of the Earth changed in the last few decades? In the GPH 111 lecture, Earth as a Unique System, you learned about many different aspects of the planet Earth - including how Earth maintained its temperature favorable for life throughout its history. This is a shorter article - (http://www.asu.edu/courses/gph111/SyllabusInfo/FaintSun.html) needing logon: gph111 and password: gaia (This is a better, but longer article (https://asu.instructure.com/assessment_questions/12982667/files/25702724/download? verifier=pX9ZAGetpCEvn6Vn4o8v4vgCyWhVzPplXiMURyOz&wrap=1) (https://asu.instructure.com/assessment_questions/12982667/files/25702724/download? verifier=pX9ZAGetpCEvn6Vn4o8v4vgCyWhVzPplXiMURyOz&download_frd=1) ), HOW DID EARTH MAINtAIN A FAIRLY EVEN TEMPERATURE FAVORABLE FOR LIFE THROGHOUT ITS HISTORY. Select the best answer.

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