Ozone Day Quiz

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Across
  1. 2. An Amendment to Montreal Protocol in (2016) to phase down HFCs.
  2. 4. The longest of the UV-B radiations reach the surface of the earth is small fractions and aids in _____ production of the skin.
  3. 8. Which device can be used to measure ozone in the stratosphere from the ground?
  4. 10. Which gas prevents extremely short wavelengths or vacuum UV radiations (10-100nm) from reaching the surface.
Down
  1. 1. Ozone is an _______ of oxygen.
  2. 3. In 1913,______ Buisson and Charles Fabry discovered the ozone layer.
  3. 5. CFC used in refrigerators is?
  4. 6. In which season is the ozone found at its maximum level in the northern hemisphere?
  5. 7. Ozone depleting substances and synthetic greenhouse gasses commonly used as propellants in _______ products?
  6. 9. How much ozone can one kilogram of halon 1211 destroy?(in Tonnes)