Mass Movement

What speed does a mudflow occur at?

• Slow

• Rapid

• Fast

• Very Rapid

A bog burst occurs when ____ becomes saturated with rainwater.

Name the factors that affects mass movement.

• Water Content

• Vegetation

• Human Activity

• Gradient

• All of the above

Name a type of mass movement.

• Carbonation

• Gradient

• Soil creep

• Delta

Human Activity can cause landslides. One example of this is when the base of a slope is ___ away in order to make space for a road/railway.

A soil creep has a what slope gradient.

• Gentle

• Steep

• Gentle to steep

• Rapid

Name a type of weathering

• Mechanical

• Biological

• Chemical

• All of the above

Draw a diagram of Freeze-Thaw-Action

A bog burst is also called a...

• bog explosion

• land slide

• bog slide

• Peat

When did the mud flow in Atami, Japan occur?

• 1978

• 1988

• 2021

• 1989