Preventing the transfer of heat from an organims 's body causes that organism to keep warm, and first, a hat serves as insulation against convective heat transfer. Given these facts, what serves as insulation to keep the body warm among the following options:
- exoskeleton
 - wearing hats
 - wearing glasses
 - Animal fur
 - sweating
 - with their fur
 - wearing jewelry
 - wearing nail polish


 

  wearing hats       