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Review of Atmosphere and Geochemical Cycles
Air•Has mass and volume
Composition
• Nitrogen – inert• Oxygen – reactive• Others are CO2 and H2O
Gravity, Density and Atmospheric Pressure
Modes of Heat Transfer
• Radiation-heat energy in transit as electromagnetic radiation• Convection-involves fluid currents that carry heat from one
place to another• Conduction-energy is transferred from a high temperature
region to low temperature region due to random molecular motion (diffusion)
Radiant Energy
• Electromagnetic energy that travels in transverse waves. Radiant energy includes visible light, x-rays, gamma rays and radio waves. Light is one type of radiant energy. Sunshine is radiant energy, which provides the fuel and warmth that make life on Earth possible.
Greenhouse Effect
Know these terms?• Transpiration• Inception• infiltration
Know these terms?• Precipitation• Evaporation• seepage• Condensation
Water Cycle