atmosphere and resources

• the question is about temperature of the earths atmosphere describe hows carbon dioxide helps to maintain temperature on earth

  carbon dioxide allows short wavelength radiation to pass through the atmosphere to the earths surface. carbon dioxide absorbs outgoing long wavelength
• 78%


  nitrogen
• 21%


  oxygen
• 1%


  argon
• deforestation


  fewer trees means less co2 is removed from atmosphere by phototsynthesis
• climate change could have dangerous consequences

  ice caps melting causes rise in sea levels inc flooding in coastal areas and coastal erosion
• how did the amount of oxygen in atmosphere increase

  algae and plants produced atmospheric oxygen by photosynthesis. as the amount of gradually oxygen increased there were more plants that produced more oxygen
• how did the amount of carbon dioxide in the atmosphere decrease?

  some carbon dioxide was dissolved in the oceans, where it reacted with metal ions to form insoluble carbonates or was taken in by animals to become part of a skeleton