Answer:
subsidence
Explanation:
The term 'subsidence' is defined as the sudden sinking or gradual caving of the ground surface with very less horizontal motion or by little horizontal motion. it can be caused due man made activities or due to natural processes.
Some of the causes of subsidence or sinking of land surface includes underground mining, sinkholes, natural compaction, glacial isostatic adjustment, erosion and many more.
Thus if the glaciers grew larger on the island of Greenland, the crust under the surface of the ice would experience subsidence.
