Earth's Layers and Plate Tectonics

A rift valley occurs when what kind of plates diverge?

• continental, continental

• continental, oceanic

• oceanic, oceanic

• dinner, salad

Divergent boundaries

• collide

• separate

• go under one another

• disappear

At converging boundaries, oceanic plates are pushed under continental plates because they are

• larger than continental plates

• warmer and less dense than continental plates

• colder and less dense than continental plates

• colder and more dense than continental plates

This is the name of the hypothesis that continents slowly moved from one single land mass to their current location

• trenches

• continental drift

• magnetism

• subduction

Plates move away from each other at

• divergent boundaries

• convergent boundaries

• subduction boundaries

• transform boundaries

The presence of this on several continents supports the idea of the continental drift therory.

• fossils

• gravity

• earthquakes

• mountains

When an oceanic plate and an continental plate converge________ are formed.

• rift valleys

• mid-ocean ridges

• trenches and volcanoes

• asthenospheres

The largest layer of the Earth's interior is the

• inner core

• outer core

• mantle

• crust

The youngest oceanic crust is found at

• transform boundaries

• rift valleys

• trenches

• mid-ocean ridges

Lithospheric plates move on this taffy-like layer of the upper mantle

• asthenosphere

• trenches

• crust

• outer core