Flashcards
WIND- Lecture 1
Cards in this deck (6)
- 14.6 Billions years ago, the atmosphere was unstable due to:-Geological
-Biological
-Anthropogenic - 24.6 Billion Years ago, CO2 + CH4 were main gases in the atmosphere due to volcanic emissions3.8 Billion Years ago,
Anaerobic life that doesn't require oxygen to survive - 32.3 Billion Years ago, oxygen appeared and stabilized at 21% The atmosphere no longer had just CO2 + CH4, but also O2Life appeared under this condition - Aerobic Life
- 4Oxygen + other gases such as CO2 kept the earth warmGaia Hypothesis - James Lovelock
-climate with biology
LIFE ADJUSTS ITSELF TO THE ENVIRONMENT THAT BEST SUITS ITSELF
-postulates that atmospheric constituents have been controlled by life to optimize conditions for life - 5The increase in solar energy plus CO2 + CH4 gases warm the earth, causing temperatures to increase. Thus, life appeared on EarthLife on earth has caused CO2 to decrease, hence cooling down Earth
- 6Anthropogenic Control PHOTOSYNTHESIS process by which plants take CO2 in the atmosphere to create plant materialIn conjunction with water, O2 is stripped from the CO2 molecule and released into the atmosphere
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- EESA09 Flashcards on WIND- Lecture 1, created by debbie_lam2003 on 16/05/2013.
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