midterm 1

midterm 1 - Midterm 1 1. The earth was formed 4.5billion...

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Midterm 1 1. The earth was formed 4.5billion yrs ago 2. Atmosphere formed primarily by? Degassing of the earth’s mantle 3. Which three gases constitute most of the atmosphere near earths’ surface? Nitrogen, oxygen and argon 4. Where does the atmosphere’s oxygen come from? Photosynthesis 5. Greenhouse gases: Absorbs long wavelength radiation from the earths’ surface 6. What are the most important greenhouse gases? Water vapor, carbon dioxide, methane 7. Climate change Long term imbalance between incoming and outgoing radiation 8. The moisture content of the atmosphere Increases sharply with temperature 9. Why does anthropogenic CO2 matter for climate?
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It absorbs long wave radiation and has a long residence time in the atmosphere 10. Wiens’ law states that: Hot objects radiate at short wavelengths 11. Stenfan-boltaman’s law states that a physical body above the temperature of 0 K emits an energy flux whose intensity: As the fourth power of temperature . 12. Which of the following statements is true The earth received shortwave radiation from the sun, emits longwave radiation. 13. The planetary albedo is defined as The fraction of solar radiation reflected by the earth. 14. Why are the poles colder than the equator? C. because of beam spreading
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midterm 1 - Midterm 1 1. The earth was formed 4.5billion...

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