Geologic Hazard Quiz

What is a sinkhole?

• A type of earthquake

• A type of landslide

• An area of ground with no natural external surface drainage

• A form of rapid mass movement

What is the main cause of sinkholes due to human activities?

• Mining

• Climate change

• Volcanic eruption

• Forest fires

What is the main natural cause of landslides?

• Climate change

• Mining

• Earthquake

• Forest fires

What is the main human cause of landslides?

• Erosion

• Weathering

• Clear cutting

• Mining

What is the main sign of an impending landslide related to trees?

• Trees or fence posts that tilt or fall

• Cracks in the ground

• Dead patches of grass or plants

• Rapid appearance of a hole in the ground

What is the main sign of an impending sinkhole related to water?

• Sudden drainage of a pond

• Dips, depressions, slopes that appear in a yard

• Cracks in the ground

• New small ponds that appear after rain

What is the purpose of geologic maps?

• To display the arrangement of geologic features of a particular area

• To predict earthquakes

• To analyze climate change

• To show the location of sinkholes

What do tension cracks indicate in relation to landslides?

• The presence of water

• The formation of a sinkhole

• The top edge of the failure zone

• The occurrence of an earthquake

What is the main type of landslide that involves a distinct zone of weakness?

• Flows

• Slides

• Topples

• Falls

What is the main type of landslide that involves abrupt movements of masses of geologic materials?

• Falls

• Topples

• Flows

• Slides