VOLCANOES AND EARTHQUAKES

What causes an Earthquake?

• Earth's plates moving past and against each other.

• Earth's plates moving towards each other.

5. The mountain range where Mount Everest can be seen.

(a)  

Observe this diagram of a plate boundary. One statement BEST describes what is happening. It is that

• the oceanic crust is melting.

• the denser oceanic crust is subducting under the less dense oceanic crust

• volcanic islands are forming.

• the tectonic plates are moving away from each other.

What geological forces might be responsible for the formation of this range of mountains?

• diverging tectonic plates

• erosion of the land by the ocean

• converging tectonic plates

• deposition of sediments by the ocean
  

Where would sea floor spreading most likely occur?

• At convergent boundaries (oceanic vs. oceanic)

• At convergent boundaries (oceanic vs. continental)

• At divergent plate boundaries (oceanic vs. oceanic)

• At transform plate boundaries

A plate boundary where two plates move away from each other is called

• Divergent Boundary
• Convergent Boundary
• Transform Boundary
• Subduction

A Plate Boundary where two plates move toward each other is called

• Convergent Boundary
• Divergent Boundary
• Transform Boundary
• Subduction

Select ALL features of Volcanic activity at a destructive plate boundary

• Eruptions are continuous

• Volcanoes dormant for long periods of time

• Magma is viscous

• Eruptions are explosive

• Composite volcanoes formed

Select ALL that are Volcanic features at a constructive plate boundary

• Shield volcanoes are formed

• Magma is runny

• Eruptions can be continuous

• Eruptions are explosive

• Non-explosive eruptions as lava flows freely

Which type of plate boundaries are found where a continental and oceanic plates meet?

• Destructive

• Constructive

• Collision

• Conservative