You are presented with the question "what results in higher levels of uv radiation reaching the place birds and trees live?" and the following answer choices: 
- emissions
 - earthquakes
 - oxidation reaction
 - ozone depletion
 - global warming
 - important habitats
 - fairies
 - the ozone layer strengthening

Now knowing that ozone depletion results in higher levels of UV radiation reaching Earth and birds live on Earth, trees live on Earth, choose the best answer.


 

    ozone depletion     