Deep incised river canyons most likely form through some combination of tectonic ________ and climate change that resulted in ________ precipitation.
A) uplift, more
B) uplift, less
C) subsidence, more
D) subsidence, less

Question

Quizplus · Accepted Answer

Deep incised river canyons form when the river cuts through layers of rock, revealing the underlying geologic history. Uplift, which is the upward movement of the Earth's crust, is a major factor in the formation of canyons. As uplift occurs, the land rises and the resulting increase in elevation allows water to flow more quickly, causing the river to erode the rock more rapidly. Additionally, climate change that results in increased precipitation can contribute to the formation of canyons by increasing the amount of water available to erode the rock. Therefore, the correct answer is A) uplift, more.

Deep Incised River Canyons Most Likely Form Through Some Combination