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PIMSO 2023 - Science - Senior Secondary - National Round Question 19

PIMSO Science · PIMSO 2023 - Science - Senior Secondary - National Round

Question 19

How does the ozone layer protect the Earth from the ultraviolet light from the sun?
  1. Ozone forms a barrier which blocks some of the incoming ultraviolet light
  2. Ozone reflects back some of the incoming ultraviolet light
  3. Ozone absorbs some of the ultraviolet light by continuous chain reaction
  4. Ozone converts some of the ultraviolet light into less harmful radiation
  5. Ozone fuses with some of the ultraviolet light for degradation