Natural Hazards -Critical Thinking

What are the three main layers of the Earth's structure?

• Upper, Middle, Lower

• Surface, Middle, Bottom

• Crust, Mantle, Core

• Atmosphere, Lithosphere, Hydrosphere

How does the Earth's mantle contribute to plate tectonics?

• The Earth's mantle is solid and does not move

• The Earth's mantle has no impact on plate tectonics

• The Earth's mantle only affects the weather

• Convection and the flow of the mantle drive the movement of tectonic plates.

What are the three types of plate boundaries?

• North, South, East

• Solid, Liquid, Gas

• Divergent, Convergent, Transform

• Oceanic, Continental, Sedimentary

Explain the process of subduction at convergent plate boundaries.

• Subduction is the process of two tectonic plates colliding and forming a new plate at a convergent boundary.

• Subduction is the process where one tectonic plate is forced underneath another at a convergent boundary.

• Subduction is the process of two tectonic plates sliding past each other at a convergent boundary.

• Subduction is the process of two tectonic plates moving away from each other at a convergent boundary.

What are the primary causes of earthquakes?

• Alien invasions, government conspiracies, and secret underground experiments

• Meteor showers, solar flares, and lunar eclipses

• Global warming, deforestation, and pollution

• Movement of tectonic plates, volcanic activity, and human activities

What are the potential consequences of an earthquake?

• Volcanic eruption, drought, hailstorm

• Tornado, hurricane, blizzard

• Heatwave, flood, avalanche

• Structural damage, landslides, tsunamis, fires, and loss of life.

How are volcanoes formed?

• Magma from within the Earth's upper mantle works its way to the surface.

• Volcanoes are formed by the erosion of rock due to wind and water.

• Volcanoes are formed by the accumulation of snow and ice on mountain peaks.

• Volcanoes are formed by the impact of a meteorite on the Earth's surface.

Describe the potential consequences of a volcanic eruption.

• Earthquakes, tsunamis, and floods

• Lava flows, ashfall, pyroclastic flows, lahars, and volcanic gases

• Tornadoes, hurricanes, and blizzards

• Droughts, wildfires, and heatwaves

What does the Richter scale measure?

• Depth of ocean water

• Intensity of hurricanes

• Magnitude of earthquakes

• Temperature of volcanic eruptions

How does the Richter scale quantify the magnitude of an earthquake?

• Using the color of the sky during the earthquake

• Based on the number of people affected

• Based on the amplitude of seismic waves.

• By measuring the temperature of the earth's crust