Weathering and Erosion: Video Assessment

The video tutorial introduces the topic of rock weathering and erosion. It begins with an overview of breaking down rocks, followed by a discussion on the physical changes rocks undergo during weathering. Oxidation is highlighted as a specific example of weathering. The tutorial then shifts focus to the movement of earth materials and concludes by explaining how movement acts as a powerful agent of erosion.

What is the initial step in the process of breaking down rocks?

• Thermal expansion

• Biological decay

• Physical fragmentation

• Chemical reaction

During weathering, how are rocks primarily altered?

• They are vaporized

• They are melted

• They are physically changed

• They are chemically dissolved

Which of the following is an example of weathering?

• Sedimentation

• Oxidation

• Erosion

• Compaction

What does the movement of Earth materials from one place to another describe?

• Weathering

• Deposition

• Sedimentation

• Erosion

What is considered the most powerful agent of erosion?

• Wind

• Ice

• Moving water

• Gravity