Fact 1: Preventing the transfer of heat from an organims 's body causes that organism to keep warm.

Fact 2: Leaves can keep animals warm.

Given the two facts above, answer the question "How do leaves keep animals from getting cold? " with the following options: 
- can be worn as clothes
 - protect them
 - adapt to coolness
 - heat with the sun
 - used to start fires
 - hard outer covering
 - preventing heat transfer
 - A transportation fuel


 

       preventing heat transfer  