Earth Interior & Plate Tectonics/ Earthquakes & Volcanoes

Earth's interior consists of 3 major zones. Which zone makes up over 80% of Earth's interior?

• crust
• mantle
• core
• lithosphere

The crust and uppermost part of the mantle make up which layer of Earth?

• inner core
• asthenosphere
• lithosphere
• upper mantle

The composition of the mantle is examined through lava that comes from the ___

• crust
• core
• lithosphere
• asthenosphere

Who proposed the idea of continental drift?

• Alfred Wegener
• Thomas Edison
• Aristotle
• Albert Einstein

The picture shows one example of evidence for continental drift. what evidence does it depict?

• similar fossils
• shape of coastlines
• land bridges
• rock types & structures

The process by which plate tectonics produces new oceanic lithosphere is called ___

• subduction
• divergence
• sea floor spreading
• mountain building

Which of the following is a CONSTRUCTIVE plate boundary?

• oceanic-oceanic convergent
• continental-continental convergent
• oceanic-continental convergent
• oceanic-oceanic divergent

Spreading at divergent boundaries within a continent creates a

• trench
• rift valley
• subduction zone
• folded mountains

At what type of boundary is a subduction zone formed?

• transform
• convergent
• divergent
• strike-slip

Why does an oceanic plate subduct under a continental plate?

• because oceanic crust is thicker than continental crust
• because oceanic crust is heavier than continental crust
• because oceanic crust is younger than continental crust
• because oceanic crust is more dense than continental crust