OZ1

Cards (6)

  • The atmosphere is made up of:
    • 78% N2
    • 21% O2
    • 1% Ar
    • 399 ppm CO2
    • + others
  • To convert from ppm to %:
    1. Divide ppm by 1,000,000
    2. Multiply by 100 to get the percentage
  • CO2 has the concentration of 399 ppm in the atmosphere, this is 0.0399%
  • To convert from % to ppm: do the opposite, (overall) multiply by 10,000
  • N2 has the concentration of 78% in the atmosphere, this is 780,000 ppm
  • Some of the polluting gases in the atmosphere:
    A) Water
    B) Methane
    C) Carbon dioxide
    D) CFCs