List the various materials that are ejected during volcanic activity. Explain the two types of basaltic lava. List the active volcanoes in your country or continent and discuss their recent history of...

List the various materials that are ejected during volcanic activity. Explain the two types of basaltic lava. List the active volcanoes in your country or continent and discuss their recent history of eruptions. What changes occur due to these eruptions?

Describe the dynamic equilibrium approach to the study of landforms and illustrate the forces at work on materials residing on a slope.