DMPQ-Explain the following term: (Geography) a) Isostacy b) Diastrophism c) Exfoliation

Isostacy:It is the state of gravitational equilibrium between Earth’s crust and mantle such that the crust”floats” at an elevation that depends on its thickness and density.Related to differences between oceanic crust, continental crust, and the mantle, is the principleof isostasy. In simplest terms, the lithosphere is “floating” on the denser, deformable,asthenosphere below. The addition of a significant amount of mass onto a portion of thelithosphere causes it to sink, whereas the removal of a large mass allows the lithosphere to rise.

Diastrophism:It refers to deformation of the Earth’s crust, and more especially to folding and faulting.Diastrophism can be considered part of geotectonics. Diastrophism comes from the Greek wordmeaning a twisting. All processes that move, elevate or build up portions of the earth’s crustcome under diastrophism.

Exfoliation:One of the