High pressure systems cause clear weather, and bermuda high-pressure systems are a frequent summer visitor. Given these facts, what causes clear weather among the following options:
- Animal survival
 - looseness of dirt or compost
 - the looseness of soil
 - windpower operated machines
 - our nearest star
 - The area was once underwater
 - electromagnetic energy
 - Something from Bermuda


 

        Something from Bermuda 