Study guide 2 quiz

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Rio Hondo College *

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124

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Geography

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Dec 6, 2023

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docx

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4

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Study guide 1 Question 1 How old is Earth? 6 billion years 100 million years 4.5 million years Correct! 4.5 billion years Question 2 How did Earth get its oceans? Melting of ancient glaciers Correct! outgassing from volcanoes created rain It always had them Photosynthesis of ancient bacteria Question 3 What is a theory? similar to a hypothesis Just a guess Correct!A scientific fact An untested hypothesis Question 4 True or False: A good hypothesis does not need to be tested True Correct!False
Question 5 Our solar system formed when: Aliens decided it was time A giant collision ocurred between two asteroid belts Correct! An ancient sun went supernova Jupiter outgassed rocky fragments Question 6 What is the oldest fossil evidence for life on this planet? Macroscopic life that evolved 540 million years ago The dinosaurs from 65 million years ago Correct!bacteria from 3.5 billion years ago plants that evolved 2 million years ago Question 7 What was Pangea? A continent that broke apart 1 billion years ago Correct!An ancient supercontinent that existed 180 Million years ago A famous painting The first bacteria Question 8 Why did scientists laugh at Alfred Wegner's hypothesis of continental drift? Because Earth is not geologically active His hypothesis was 100% wrong and the continents do not move Correct!There was no mechanism at the time which could explain how the continents move Because he was a dumb weatherman Question 9
1 / 1 pts What is a tectonic plate? A piece of asthenosphere which "floats" on the lithosphere The same as the mesosphere Correct! A piece of lithosphere which "floats" on the asthenosphere The same as a continent Question 10 1 / 1 pts Which of the following is NOT a type of tectonic plate boundary? Divergent Convergent Correct! Transvergent Transform Question 11 True or False: Continent-continent collisions create volcanoes True Correct! False Question 12 Where do the majority of earthquakes and volcanoes occur? In Hawaii The southern hemisphere In the middle of tectonic plates Correct!The plate boundaries
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Question 13 Which of the following was EARLY evidence for plate tectonics? Correct! All of the above Identical fossils separated by oceans Climate evidence such as palm fossils in Greenland Matching coastlines Question 14 Why was the discovery of a reversing magnetic field so significant? It proved the hypothesis of rare earth magnetism Because it could be used to deafeat the Russians Correct! It provided a quantitative way to track how the plates have moved in the past It proved that plate tectonics is wrong