Which of the following is the factor involved in the dynamics of rivers carvings canyons in rocks?
a. weathering
b. tectonic movement
c. molten rock formation
d. metamorphic rock formation

Match the correct terms to their descriptions a system in which only energy but not matter is exchanged frozen water in snow part of geosphere that includes only soil a thin layer between the troposphere and the stratosphere cryosphere tropopause closed system pedosphere