1. What conditions might cause mud to flow?
A lot of rainfall, loose soil, and steep slopes are all conditions that might cause mudflow.

2. What conclusion can you draw from the two images?
The higher the slope, the more likely mudflow is.

3. List at least two ways you could make the mud slide off the 30° slide plane without changing the plane's angle.
- add more water
- shake it/cause vibrations so that the soil loosens.

4. What conditions in nature would be represented by the answers you gave for question 3?
- rainfall/flooding
- earthquake

5. List at least two factors that contribute to the formation of mudflows on volcanoes.
- glacial water build up
- large quantities of ash and debris

6. How might forest fires affect an area's potential for experiencing mudflows?
It would effect it by melting snow, and mix with soil to create mudflow, it would also create more ash and debris.

7. Hypothesize about how mudflows could change the topography of an area after a fire.
Mudflows would change the topography of an area after fire by flattening out the land.

8. What human activities strip soil of its protective vegetation and increase its vulnerability to mudflows?
Human activities such as building buildings and roads, as well as driving strip soil of its protective vegetation and increase its vulnerability to mudflows.

9. Write a paragraph describing the conditions that cause dangerous mudflows. Include the types of locations where mudslides are most likely to occur.
The conditions that are likely to cause dangerous mudflows are wet land, caused by heavy rainfall and flooding, and shaking of the ground caused by earthquakes, as well as steep mountains. Location where mudflows are most likely to have mudslides are mountainous places, and places with a lot of rainfall, as well as places with high earthquake rates.

Mass Movement: Lahar

Type of Mass Movement: Lahar
Definition: Mudflow composed of ash and water. (rain/snow/ice)