Plate tectonics

Process in which one layer of the crust goes below another one into the mantle.

• Seismic waves

• Crust

• Subduction

• Asthenosphere

When earthquakes occur, they produce..

• Temperature

• Seismic waves

• Pressure

• Lithosphere

In a process taking millions of years, part of the ocean floor sinks back into the mantle at deep ocean...

• Crust

• Ridge

• Magnetic stripes

• Trench

Rock samples can also be evidence that the continets are moving.

• True

• False

Humans cannot visit the bottom of the crust because of high..

• temperatures

• brightness

• distances

• mantle

Type of evidence of the sea-floor spreading.

• Pressure

• History books

• Temperature

• Magnetic stripes

The layer of solid rock that includes both dry land and the ocean floor.

• Outer core

• Crust

• Mantle

• Inner core

Fracture in the crust which allows magma from the mantle to come out and form new crust.

• Mid-ocean ridge

• Trench

• Lithosphere

• Outer core

The upper most part of the mantle and the crust together form a hard layer colled the...

• Lithosphere

• Trench

• Mid-ocean ridge

• Asthenosphere

Fortunately, Wegener could provide a satisfactory explanation for the force that pushes or pulls the continents and scientific community rewarded him.

• True

• False