What are some examples of constructive forces?

depositions, earthquakes, faults, and volcanoes.

Explanation:

Constructive forces are processes that cause the Earth's surface to build up or rise.

   Depositions: sediment that is moved from one area to another and builds in excess; sediment is carried by water, wind, and ice

   Earthquakes: shaking on the Earth's surface can have after effects such as a tsunami or landslide

   Faults: tectonic plate movement under the ground happen around fault lines which causes earthquakes; areas of land can raise or shift where faults are located

   Volcanoes: volcanoes release gas, ash, and lava that alter the appearance of the volcano and can change the land below (build up of rock or destroyed land and trees)

a, i am pretty sure.