Scientists have learned that Earth’s continents are __________.

The idea that large landmasses move across Earth is called ________.

Where are most mountains, earthquakes and volcanoes located?

Subduction can occur at ________ boundaries.

Wegener’s Continental Drift theory (1912) suggested __________.

Which one of the following statements does NOT support the Continental Drift Theory?

Which layer of the Earth allows movement of the plates because it is made of liquid rock?

____________ can only occur at divergent boundaries.

In Latin, ‘Tectonic’ means _______.

Which diagram represents subduction occurring at a convergent boundary? ______

Which diagram represents sea-floor spreading? _______

In which diagram is a mid-ocean ridge represented? _______

Which diagram represents what is currently occurring in Africa’s Great Rift Valley?

Which diagram represents a transform-fault boundary? ________

The thinnest layer of Earth

place where two plates grind past one another

one large land mass or super continent

section of Earth that includes the crust

and the solid upper mantle

a deep valley formed at a divergent boundary