Conditions for life on earth summary

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  • Created by: Rozy
  • Created on: 19-12-12 14:04
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  • Conditions for life on Earth
    • Appropriate temperature range
      • Above 0 degrees, which allows liquid water
      • Enzymes
        • Require liquid water as a solvent
    • Ambient gases
      • Carbon dioxide
        • For photosynthesis and climate control
      • Nitrogen
        • For protein synthesis
    • UV Light
      • Sunlight
        • Provides energy for photosynthesis
      • Solar Radiation
        • Conditions for life on Earth
          • Appropriate temperature range
            • Above 0 degrees, which allows liquid water
            • Enzymes
              • Require liquid water as a solvent
          • Ambient gases
            • Carbon dioxide
              • For photosynthesis and climate control
            • Nitrogen
              • For protein synthesis
          • UV Light
            • Sunlight
              • Provides energy for photosynthesis
            • Solar Radiation
              • Distance from the sun
                • Controls light and temperature levels
              • Tilted axix
                • Seasonal variations
              • Tilted rotation
                • Controls the duration of day and night and therefore the range of temperature
        • Distance from the sun
          • Controls light and temperature levels
        • Tilted axix
          • Seasonal variations
        • Tilted rotation
          • Controls the duration of day and night and therefore the range of temperature
  • Liquid Water
    • Transport
      • Water is a solvent in blood and sap. It transports oxygen, carbon dioxide, sugars, waste products
      • Heat can be transported in the blood .
        • E.g from the core of the body to the skin to increase heat loss
    • Special freezing qualities
      • Ice floats which keeps cold air separate from the water below
        • Prevents lakes from freezing solid in the winter
  • Heat can be transported in the blood .
    • E.g from the core of the body to the skin to increase heat loss
  • Special freezing qualities
    • Ice floats which keeps cold air separate from the water below
      • Prevents lakes from freezing solid in the winter

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