Question

the grand canyon, pictured, was created over millions of years as the colorado river cut through the land. what is this process called?
a. tectonics
b. erosion
c. mining

Explanation:

• Option A: Tectonics refers to the movement of Earth's crustal plates, which is not the process of a river cutting through land.
• Option B: Erosion is the process by which natural forces (like water, wind, etc.) wear away and transport rock and soil. The Colorado River cutting through the land to form the Grand Canyon is an example of water erosion.
• Option C: Mining is the extraction of minerals or other geological materials from the Earth, which is not related to canyon formation by a river.

Answer:

B. erosion