• moderates temperature
  • (moon 400F sunside to -250F dark side)
• medium for travel
  • without silence, no aircraft or birds, no parachute, no meteor protection
• diffuses sunlight and equalize temps and pressures
  • attain equilibrium
• provides gases for life
  • nitrogen and oxygen for plants and animals

Composition of the Atmosphere:

Nitrogen 78% - supports plant growth Oxygen 21% - supports chemical reactions Argon 1% - combined with other gases, minimal effect on weather

• Carbon Dioxide (CO2) .03% -
  
  
  
  
  
• Ozone (O3) trace amounts -
  
  
  
  
• Water Vapor and Solids -
  
  
  

Troposphere -