Iron rich minerals in rock pointed in one direction the switch to the exact opposite direction. whats supports this idea

Which of these has the least impact on the climate of a place

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.

What landform caused by water erosion and deposition is shown in the image?