Forces Shaping the Earth: Mass Movement

The video tutorial explains mass wasting, a process driven by gravity that causes sediment and debris to move downhill. It covers rapid events like landslides and rockslides, which can cause significant destruction, and slower processes like creep. The tutorial also highlights mud flows, using a 1996 Iceland event as an example, where a volcanic eruption under a glacier led to a massive flow of water, mud, ice, and rock. The video emphasizes the potential threats these natural processes pose to life and infrastructure.

What is the primary force responsible for mass wasting?

• Water currents

• Gravity

• Tectonic activity

• Wind

Which of the following is an example of a rapid mass wasting event?

• Sedimentation

• Creep

• Landslide

• Soil erosion

What natural event in Iceland in 1996 led to a significant mass wasting event?

• Tsunami

• Hurricane

• Volcanic eruption

• Earthquake

What materials are typically involved in a mudflow?

• Mud, dirt, rocks, and waste

• Sand and gravel

• Ice and snow

• Leaves and branches

What is the term for the slow movement of earth materials downhill?

• Landslide

• Avalanche

• Erosion

• Creep