The Ring of Fire - Geological Forces Quiz

What is the Ring of Fire?

• A circle of fire created by volcanic eruptions

• A popular tourist attraction in the Pacific region

• A zone of geological destruction surrounding the Pacific

• A mythical ring of fire mentioned in ancient texts

What percentage of the world's volcanoes are situated in the Ring of Fire?

• 90%

• 75%

• 100%

• 50%

What is the primary reason for the thick, viscous lava in the Ring of Fire volcanoes?

• High iron content

• Low silica content

• High silica content

• Low iron content

What mineral indicates the presence of water in the magma that powers the Ring of Fire volcanoes?

• Feldspar

• Quartz

• Mica

• Hornblende

What is the source of the water that causes the rocks to melt below the Ring of Fire volcanoes?

• Rainwater

• Melting ice caps

• Underground reservoirs

• Seawater from ocean sediments

What process is responsible for shifting ocean sediments deep under the land in the Ring of Fire region?

• Erosion

• Weathering

• Subduction

• Deposition

What percentage of the world's earthquakes occur in the Ring of Fire?

• 90%

• 100%

• 75%

• 50%

What was the magnitude of the earthquake near Anchorage, Alaska in March 1964?

• 8.0

• 9.0

• 7.5

• 6.0

What is the primary cause of earthquakes in the Ring of Fire region?

• Tectonic plate movements

• Underground mining activities

• Volcanic eruptions

• Meteorite impacts

What is the significance of the carbon-12 samples found in the gases from the Ring of Fire volcanoes?

• Indicates the presence of ancient fossils

• Suggests the influence of extraterrestrial sources

• Reveals the role of phytoplankton in the formation of magma

• Points to the impact of industrial pollution