crust is no different. it will sink into the asthenosphere when weighed down and rise up when a weight is removed. these up-and-down crustal movements are called isostatic adjustments. a downward isostatic adjustment is called subsidence and an upward isostatic adjustment is called uplift. this question is about various geologic processes that can cause isostatic adjustments. look at the figures below and determine whether the geologic processes will cause the crust to subside or uplift. drag the appropriate items to their respective bins. each item may be used only once.