Question

1. hoodoos are tall stru of sedimentary rock. both and help to create hoodoos.

Explanation:

Answer:

The processes that help create hoodoos are erosion (specifically wind erosion and water erosion, often from rain/snowmelt) and weathering (like chemical weathering from minerals reacting with water/atmosphere, or physical weathering from temperature changes). So filling the blanks: the first blank (for the agent of erosion/weathering) could be "erosion" (or more specifically "wind", "water"), and the second blank could be "weathering" (or "chemical weathering", "physical weathering"). A common answer pair is: "erosion" and "weathering" (or more precisely, processes like "wind erosion" and "chemical weathering" also work, but the general geological processes driving hoodoo formation are erosion (by wind, water) and weathering (chemical, physical) acting on sedimentary rock over time.