lec notes - TESTQUESTIONS 20:08 LEC1...

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TEST QUESTIONS… 20:08 LEC 1 Scientists now agree that… (non of the above) The presents of metallic core in earth can be inferred from the magnetic field,  earths moments of inertia, meteorites, and earthquakes The earth is molten in the outer core Earth differentiated into a layer planet in the hadean  LEC 2 Solar system formation: 4.567 million years ago o Relatively quick process o Sun and planets form at same time o Meteorites Webular theory Swedenborg The iron catastrophe: 4.50 billion years ago o Final impacts with mars-size LEC 3 Know age of earth bc of meteorites Moon formed 50 million years after earth formed Know 4 elements  that make up earth and what makes up core What elements are most abundant?
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Matching coasting, geography, glaciers, fossils   allused by wegnener  LEC 4 (none) LEC 5 the age of ocean crest: all are true but one is false o oldest at mid ocean magnetic reversals: are not ually taken million yaels to complete a the  magnetic poles. The are instantaneous.  LEC 7 Summed over the entird surface of earth are the lithrosophic production and  sumption are equal LEC 8 Strongest earthquack are lacated—in tectonic collison zones
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Deepest earthquaquests located in—tectonic collision zones LEC 9 Malif and felsic lavas Viscosity Styles of eruptions 
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lecture 2 20:08 Earth (radius of 6371 km) is small for an astronomical view point
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lecture 2 20:08 Size of earth and size of universe First measurement of eaths sze came dfrom Eratosthenes (276-194 b.c)  Syene and alexandreia (the world is not straight)  Eratosthees (276-194) 360 degrees eaths average redius r=6371 km  avg readious of moon 381555 km sun = 149600000 km  avg width of solar systh = 39 au ( astanolica units) moon circles the earth- perigee is closer, afagee is farther eath orbits the sun in elliptical motion – 94.5 million miles from the sun
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lec notes - TESTQUESTIONS 20:08 LEC1...

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