Development of a theory L2

Development of a theory L2

Multiple Choice

The hypothesis that continents have slowly moved to their current locations is called _____.

• continental drift

• continental slope

• magnetic reversal

• convection

Multiple Choice

In the Mid-1900s, scientists mapped mid-ocean ridges using what?

• Moons

• Sonars

• Satellites

Multiple Choice

The youngest rocks on the ocean floor are located ____.

• near continents

• at mid-ocean ridges

• far from mid-ocean ridges

• near Asia

Multiple Choice

Sea-floor spreading begins at the ..........

• Deep ocean trench

• Mid-ocean ridge

• Continent's edge

Multiple Choice

Continental drift states that continents have moved ____ to their current location.

• vertically

• slowly

• quickly

Multiple Choice

New ocean crust is continually formed at ____.

• mid-ocean ridges

• trenches

Open Ended

The theory that explains how new crust is created at mid-ocean ridges is ......................