In the context of migration, when a military force systematically removes people from their home, it's called:
A. a pull factor.
B. a push factor.
C. forced migration.
D. voluntary migration.

Liquefaction is a. a quicksand-like condition arising in some wet soils during earthquakes. b. flooding caused by tsunamis. c. flooding of coastal areas due to tectonic subsidence. d. flooding caused by dam failure resulting from an earthquake.