Geohazard Phenomenon

What is an exogenic process in Earth science?

• Process occurring beneath Earth's crust

• Process driven by plate tectonics

• Process occurring on Earth's surface driven by external forces

• Process related to volcanic activity

Which of these is an example of an endogenic process?

• Weathering

• Erosion

• Mantle convection

• Sedimentation

What causes a volcano to form?

• Wind erosion

• Glacial movement

• Surface water flow

• Movement of tectonic plates and magma buildup

Based on the lesson, which of the following locations is associated with volcanic disasters?

• Mount Kinabalu, Sabah

• Lewotobi Laki-Laki, Indonesia

• Tohuku, Japan

• Highland Tower volcano, Malaysia

What is the primary cause of most tsunamis?

• Meteorite impacts

• Surface storms

• Underwater earthquakes

• Wind patterns

What is the term for a smaller earthquake that occurs after a larger main earthquake?

• Geological effect

• Fissure

• Magnitude

• Aftershocks

Why is it important to remove ash-collecting structures like awnings and avoid using plastic roofs during a volcanic eruption?

• Volcanic ash may cause fire if it falls on awnings and plastic roofs

• Volcanic ash consists of hard, and heavy rock particles that can accumulate on surfaces, causing structures to collapse.

• Volcanic ash are made up of soft ashes which can be swept away easily by wind when it falls on structures like awnings

• Removing such items is not actually a good measure as plastic roof will hold off volcanic ashes easily

Why does underground mining sometimes cause earthquakes?

• removal of large rocks leaves empty spaces that weakens structural support of earth

• The large machines which bangs the underground may cause vibration which then causes earthquake

• Underground mining causes landslide which then can cause earthquake

• all of the above

Why does deforestation increase the risk of landslides?

• Deforestation cause more rainfall which then causes landslide

• Deforestation causes weathering of rocks around the area which then causes landslide

• Deforestation causes the soil to become loose and unstable, making it more likely to slide during heavy rainfall.

• Deforestation causes tectonic plate movement and volcanic activity which then causes landslide

Which safety measure is most important for landslide-prone areas?

• Installing smoke detectors

• Proper drainage systems

• Building wire fences

• Planting small flowers