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The Earth. Primary Atmosphere : - H, He Secondary Atmosphere : - CO 2 (90%), N, Sulfur Dioxide, H 2 O vapor. Primary Atmosphere : - H, He Secondary Atmosphere : - CO 2 (90%), N, Sulfur Dioxide, H 2 O vapor Current Atmosphere :
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Primary Atmosphere: - H, He Secondary Atmosphere: - CO2 (90%), N, Sulfur Dioxide, H2O vapor
Primary Atmosphere: - H, He Secondary Atmosphere: - CO2 (90%), N, Sulfur Dioxide, H2O vapor Current Atmosphere: - N2 (78%), O2 (21%), CO2 (0.03%), H2O vapor
Geologic Features: - Mountains, Volcanoes, Craters - Erosional Features - Plate tectonics
The Earth’s Interior Crust, Silicate rock, 5-50 km, Solid
The Earth’s Interior Mantle- Basaltic Rock, 2850 km thick, Plastic
The Earth’s Interior Outer Core- Iron/Nickel, 2200 km thick, Liquid
The Earth’s Interior Inner Core- Iron/Nickel, 1300 km radius, Solid
Conditions for a Planetary Magnetic Field 1. Liquid/Molten core 2. Core is electrically conducting 3. Rapid rotation