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Atmosphere 6th
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- 2. Atmosphere • Mixture ofgases air Atmospheric gases (now) Percentage (%) by volume Nitrogen 78,08 Oxygen 20,95 Argon 0,93 Carbon Dioxide 0,03 Water vapor, ozone, and other gases 0,01
- 3. Graph Nitrogen Oxygen Argon Carbon Dioxide Water vapor, ozone, and othergases Atmospheric gases
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- 5. Composition of theatomsphere Early atmosphere : More carbon dioxide and methane Now: More oxygen • Photosynthesis
- 6. Layers of theatmoshere https://www.youtube.com/watch?v=WaikvaAw2nk
- 7. Layers Exoshere 600- 10.000 km Hydrogen and helium -Less gas particles Meteorologi cal satellites Thermosphere 80-600 km 1500ºC -Ionosphere Layer Mesosphere 50-80 km No water vapor or ozone -100ºC Lowest temperatures Stratosphere 15- 50 km Almost no water vapor -Ozone -Ozone layer 30 km altitud Troposphere 0- 15 km -Oxygen -Carbon dioxide -nitogen Water vapor 75% atmosheric mass Area we live in Changes in weather
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- 9. Question • The sunheats our planet…..
- 10. Greenhouse effect • Causedby : – Water vapor – Carbon dioxide – Methane –Function: retain the heat from the sun: – average :15ºC liquid water sustains life
- 11. Atmosphere Greenhouse effect sustainslife Ozone layer filters UV Maintains life oxygen / carbon dioxide Weather water cycle
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