Plate Tectonics Part 2

Front

Earth's oceanic crust is ______ than continental crust.

Back

thinner but denser

Front

Which of the following is NOT a source of heat in Earth's Core  that drives convection in the Mantle: The Sun, Radioactive Decay, Leftover heat from the Earth’s formation?

Back

The Sun

Front

The ocean floor sinks below a deep-ocean trench and back into the mantle in a process known as

Back

subduction

Front

What type of plate boundary?

Back

converging

Front

What feature is shown here?

Back

mid-ocean ridge

Front

What type of plate boundary? Options: Converging, Diverging, Transform

Back

Diverging

Front

When continental plates pull apart at a divergent boundary on land, a(an) _____ forms.

Back

rift valley

Front

What type of plate boundary does this picture show?

Back

Transform

Front

Both mid-ocean ridges and rift valleys always form at which type of boundary?

Back

Diverging

Front

True/False: Volcanic islands form at Ocean-Ocean convergent boundaries

Back

True