When a cooler object touches a warmer object , thermal conduction occurs, and when the glacier moves into warmer areas the ice melts and sediments are deposited. Given these facts, glaciers melt via among the following options:
- vaporization
 - thermal conduction
 - Water expanding
 - colder temperatures
 - mountain sources
 - internal combustion
 - decreased wind
 - Physical weathering


 

  thermal conduction       