All would interact but most proximate to the melting would be the hydrosphere and affects on ocean current circulation patterns and sea level. The answer is in my estimate based on the first set of interactions cryosphere and hydrosphere
I can make the case for the involvement of all the options. The geosphere would go through isostatic rebound and ground level would rise once the weight of the ice caps are removed. The change in reflectivity/albedo would put raise temperatures and put more water vapor into the atmosphere. Habitats of the biosphere would be shifted.
I can make the case for the involvement of all the options. The geosphere would go through isostatic rebound and ground level would rise once the weight of the ice caps are removed. The change in reflectivity/albedo would put raise temperatures and put more water vapor into the atmosphere. Habitats of the biosphere would be shifted.