Plate Tectonics and Natural Hazards

What is the primary movement of tectonic plates at a constructive (divergent) boundary?

• Sliding past each other

• Moving towards each other

• Moving away from each other

• One plate sinking under another

Where are most constructive (divergent) plate boundaries found?

• Deep within continents

• At the bottom of the sea

• Along mountain ranges

• In desert regions

Which natural hazard is typically associated with constructive (divergent) plate boundaries?

• Powerful earthquakes

• Tsunamis

• Volcanoes

• Landslides

What happens to an oceanic plate when it meets a continental plate at a destructive (convergent) boundary?

• It slides over the continental plate

• It is forced underneath the continental plate

• It breaks apart into smaller pieces

• It moves sideways past the continental plate

What is the process called when an oceanic plate sinks into the mantle beneath another plate?

• Subduction

• Divergence

• Collision

• Transformation

Why do powerful volcanic eruptions occur at destructive (convergent) boundaries where an oceanic plate meets a continental plate?

• Plates are sliding past each other

• Magma rises directly from the core

• Water and gases from the oceanic plate cause pressure to build up

• Two continental plates are colliding

What type of natural hazard is very common and powerful at destructive (convergent) boundaries where an oceanic plate meets a continental plate?

• Weak earthquakes

• Tsunamis

• Powerful earthquakes

• Gentle lava flows

What geological feature is formed when two continental plates collide at a destructive (convergent) boundary?

• Volcanoes

• Mid-ocean ridges

• Fold mountains

• Deep ocean trenches

Why are there no volcanoes at collision boundaries between two continental plates?

• The plates move too slowly

• There is no magma rising from underneath

• The plates are too thick

• The plates slide past each other

What is the main characteristic of a conservative (transform) plate boundary?

• Plates move away from each other

• Plates move towards each other

• Plates slide side-by-side past each other

• One plate sinks under another