ATMOSPHERE:
Layer of gases that surround the Earth
COMPOSITION:
78% Nitrogen
21% Oxygen
.9% Argon
.1% Other Gases
ATMOSPHERIC PARTICLES:
• Water Vapor – from evaporation and
transpiration, ranges from 1% (dry) to 4%
(moist)
• Ozone – O3...
ATMOSPHERIC PRESSURE:
• The pressure exerted on a surface by the
atmosphere
• Decreases as altitude increases
• Measured u...
LAYERS OF THE ATMOSPHERE:
a) Troposphere
b) Stratosphere
c) Mesosphere
d) Thermosphere
TROPOSPHERE:
• Closest layer to the Earth
• Where the weather is found
• Temperature decreases as altitude increases
becau...
STRATOSPHERE:
• Almost all the ozone (including ozone layer) in
this layer
• As altitude increases temperature increases
b...
MESOSPHERE:
• Temperature decreases as altitude increases
• Coldest layer
THERMOSPHERE:
• As altitude increases temperature increases
because oxygen and nitrogen atoms absorb
solar radiation
14. atmosphere notes
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14. atmosphere notes

  1. 1. ATMOSPHERE: Layer of gases that surround the Earth
  2. 2. COMPOSITION: 78% Nitrogen 21% Oxygen .9% Argon .1% Other Gases
  3. 3. ATMOSPHERIC PARTICLES: • Water Vapor – from evaporation and transpiration, ranges from 1% (dry) to 4% (moist) • Ozone – O3, absorbs harmful UV radiation, being destroyed by particulates • Particulates – tiny solid particles such as ash, dust, pollen, microscopic organisms
  4. 4. ATMOSPHERIC PRESSURE: • The pressure exerted on a surface by the atmosphere • Decreases as altitude increases • Measured using a barometer
  5. 5. LAYERS OF THE ATMOSPHERE: a) Troposphere b) Stratosphere c) Mesosphere d) Thermosphere
  6. 6. TROPOSPHERE: • Closest layer to the Earth • Where the weather is found • Temperature decreases as altitude increases because its heated by Earth’s surface
  7. 7. STRATOSPHERE: • Almost all the ozone (including ozone layer) in this layer • As altitude increases temperature increases because UV rays absorbed by ozone
  8. 8. MESOSPHERE: • Temperature decreases as altitude increases • Coldest layer
  9. 9. THERMOSPHERE: • As altitude increases temperature increases because oxygen and nitrogen atoms absorb solar radiation

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