Earth's Interior and Plate Tectonics

The movement of earth's plates is caused by....

• The magnetic field caused by the core

• convection currents in the crust

• convection currents in the mantle

• the pushing and pulling of the plates against one another

What type of boundary exists on Washington State's West Coast?

• continental-continental convergent boundary

• divergent boundary

• continental-oceanic convergent boundary

• transform

What does mantle convection cause to happen?

• Cool material to rise

• Warm material to sink

• Fossils to form

• Tectonic plate motion

What is a cause of sea-floor spreading?

• depositing layers

• diverging tectonic plates

• heat and pressure

• mountain formation

As you go deeper into the earth the....

• pressure increases and temperature increases

• pressure increases and temperature decreases

• pressure decreases and temperature decreases

• pressure decreases and temperature increases

What happens at plate boundaries?

• Earthquakes

• seafloor spreading

• volcanoes

• all of these

A divergent boundary is a boundary between two plates that....

• slide along each other

• move away from each other

• move toward each other

• converge

Which feature forms when two plates of different densities collide?

• a mid-ocean ridge

• subduction zone

• rift valley

• transform boundary

What kind of movement created the Himalaya mountains?

• erosion

• reversal of Earth's magnetic field

• divergent boundaries

• convergent boundaries

Who first proposed the theory of continental drift?

• Harry Hess

• Galileo Galilee

• Albert Einstein

• Alfred Wegener