_____ layer is like an invisible shield that protects earth from solar radiation.

_____ layer is like an invisible shield that protects earth from solar radiation.

_____ layer is like an invisible shield that protects earth from solar radiation.

_____ layer is like an invisible shield that protects earth from solar radiation.
  • Bio
  • Ozone
  • Water
  • Oxygen







ANSWER 
     (2)
  • Ozone

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