3. Use the information below to answer the following question(s).
A hiker walks from the upper rim to the bottom of a large canyon. At the bottom of the canyon, the hiker camps
for the night. The map below shows the trail the hiker used.
A large river flows along the bottom of the canyon. The vertical distance between the upper rim of the canyon and
the river is 1.743 meters.
Brain Dump
What process is most responsible for the depth of the canyon?
One large flood moved the rock layers.
B Hot magma melted a path through the rock layers.
Many strong tornadoes eroded the rock layers over time.
D Flowing water eroded the rock layers slowly over many years.