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What planets don't orbit perfectly in the plane of the ecliptic?
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Jupiter
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Mars
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neptune
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saturn
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uranus
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mercury
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earth
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Earth is heated by:
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seismic p waves depend on:
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the d'' layer is the layer of discontinuity between the crust and the upper mantle
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upper mantle
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lower mantle
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solid inner core
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solid FeS layer
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What is the difference in formation between a protostar and a protoplanet?
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Protostars are larger
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Protostars form first out of particles, their gravity causes other particles to orbit the protostar, colliding and forming planets
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protoplanets don't have a gravitational field
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s waves, or shear waves are propagated:
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horizontally
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90 degrees to horizontal
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by the shearing movement
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p waves are caused by:
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ray paths are drawn as curves over short distances
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Erastosthenes experiment calculated:
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What is the upsilon andromoedae system?
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An asteroid belt
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A multi-star system
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the heat of differentiation is:
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Inge Lehmann discovered the liquid outer core
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The upper mantle is made of
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olivine
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pyroxene
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ringwoodite
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wadlseyite
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perovskite
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ferropericlase
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the order of sea floor spreading is:
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magma rises, is cooled, moves to the side (pushed by new magma coming up), is subducted underneath less dense continental crust
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magma rises, moves to the side, cools which locks in the curie temperature, and then sinks as the density increases
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the athenosphere and lithosphere are parts of the upper mantle
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outer core is made of liquid:
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the difference between the inner core and the outer core is that it transitions from liquid to solid
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Sea floor spreading is started by subduction
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types of convergent boundaries are:
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Vine, Matthews and Morley used sea floor spreading to confirm:
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polar reversal
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continental drift
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hot spot hypothesis
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subduction
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continent-continent collisions:
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match the innovator with their idea:
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J.J thompson and the e-
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rutherford and the p+ and empty space in the nucleus
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Hipparchus classify stars based on brightness 1-6
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hertzsprung-russel luminosity vs temperature
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hertzsprung-russel classify stars based on brightness 1-6
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Bohr quantized model of atom
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Alfred Wegener continental drift
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Harry hess hot spot hypothesis
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Harry hess sea floor spreading centres
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J.J. tuzo wilson, wilson cycle, transform bounadries and hot spot hypothesis
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conduction is the most efficient way of spreading heat
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There are these types of divergent faults:
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pluto is a part of the kuiper belt
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Igneous and metamorphic rocks lock in the polar field by:
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cooling past their curie temperatures and locking in the polar field at the time
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as the particles settle, magnetic minerals like hematite and magnetite align with the magnetic field and the particles align with the magnetic field because if this
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in the wilson cycle the continents rejoin because of:
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A star increases in temperature,
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becomes a red giant, nebulas, then becomes a white dwarf
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becomes a red supergiant, novas, then becomes a neutron star or a blackhole
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becomes a planet
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11x earth's radius
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>60 satellites
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liquid core
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solid core
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these are the jovian planets:
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jupiter
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neptune
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uranus
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pluto
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venus
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saturn
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when an iceberg pushes down on the land it:
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wants to melt and become magma
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bounces back up, causing cracks
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forms an indent in the earth
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volcanoes are caused by:
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hot spot hypothesis is that:
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the hot spot are caused by plate movement, magma coming up through same plate, in a different place
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the sea floor spreading centers move, causing magma to form the Hawaiian islands
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The terrestrial planets are made of metal and rock, as opposed to the jovian planets made of gases and ice. This is because:
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planets closer to the sun are formed by elements that condense at higher temperatures. This is why terrestrial planets are formed by metals and rocks
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because the gases condense at lower temperatures they did not form the terrestrial planets and were pushed outwards
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planets closer to the sun were able to get more of the elements from the nebula and therefore were made of the heavier elements, leaving the lighter elements for the jovian planets
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the temperatures of the layers of the earth are: