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Ch 6 Exercise - Terrestrial Planets Table.docx - Circle or...

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Circle or highlight themost unusual thingsMercuryVenusEarthMarsDistance from the Sun in AU0.4 AU0.7 AU1.0 au1.5 AUDirection of rotation?CCWCWCCWCCWAxial tilt23.5°25.19°Does the axial tilt produce seasons?YesNoYesYesEccentricity?Most eccentricLeast eccentricAlmost circularYesDoes the orbit make the seasondifferent lengthsNoNoA little bitYesWhich seasons are longer?NANASpring and SummerSpring and SummerLength of year in Earth days88 days225 days365 days687 daysLength of day in Earth hours1,416 hours5,832 hours24 hours24.5 hoursCore?Solid ironSolid ironSolid ironLiquid ironMantle?Silicate rockSilicaMelted rockSilicate rockCurrent active plate tectonics?YesNoYesNoAny evidence of past platetectonics? Volcanoes, etc.?YesNoYes
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