Athermal insulator slows the transfer of heat, and ice is a good thermal insulator. Given these facts, what is ice good at among the following options:
- Physical weathering
 - Conducting electricity
 - heat production
 - water conservation
 - Slowing the transfer of ions
 - lowered energy cost
 - Slowing the transfer of heat
 - Heating up water


 

       Slowing the transfer of heat  