EVS 1101 Study Guide - Subduction, Dynamic Earth, Oceanic Crust

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Pop quizzes will be on thursday not tuesday* Small terrestrial planets sun, mercury, venus, earth, mars. Huge ice or gaseous planets (outer planets) jupiter, saturn, uranus, neptune. Sun has over 99. 8% of the mass of the solar system. Earth is unique in that it has liquid water covering the bulk of its surface; Polar caps have solid co2 and h20. Dendritic drainage patterns are patterns found on mars that resemble water patterns on earth. It suggests that water once flowed on mars. Humans appeared 3. 5 4. 4 million years ago. If earth was 24 hours old, humans would have appeared at 23h 59. Core rich in iron and nickel. Mantle has a variable composition iron, magnesium, silicon and oxygen; 2800 km thick. Earth"s crust is thinner on ocean than continents. Subduction zones one tectonic plate moves under another tectonic plate and sinks into the mantle as the plates converge.