What force causes the walls of a canyon to become increasingly deeper?

Aregion groups people together accodring to their traditions

Ascientist observes hot water erupting from a vent in the earth. what most likely caused the water to rise and erupt from the vent? the vent was lower than the water table. a well was drilled into a pressurized aquifer. a well with a mechanical pump was installed. the water was heated by magma or hot rocks.

Michigan geography riddle: a city that is a fight a stream