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| study of the earth's structures and processes |
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| scientists the specialize in the study of the earth |
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| 1 liquid water 2 transparency of water 3 its expansion before freezing 4 dissolving properties 5 strong surface tension |
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| how do geologists learn about the earth |
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| rock,1st layer,7-50 km thick, 6x thicker under continents,discontinuities occur here,contains moho(1909) |
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| extends from the moho to 2900 km deep, earthquakes travel quicker here because it has a higher temperature |
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| 2x as dense as iron,outer core -2260 km thick, inner core -1220 km thick, the earth's magnetic field comes from the core because it contains dense iron |
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