Ocean Crust is

• made fro submerged continents

• magnetically produced crust

• produced at the mid-oceanic ridge

• produced at all plate boundaries

Tags

NGSS.MS-ESS2-3

Alfred Wegener proposed the ​ (a)   hypothesis.

• Continental Drift
• Plate Tectonics
• Ridge Push
• Seafloor Spreading

Tags

NGSS.MS-ESS2-3

What tectonic plate did scientists not use to develop the the theory of seafloor spreading?

• Echo-sound measurements

• GPS( Global positioning system)

• Magnetometer measurement

• seafloor thickness measurement

Mid-Oceanic ridges are associated with

• Convergent Boundaries

• Divergent Boundaries

• Hot Spots

• Transform plate boundaries

Tags

NGSS.MS-ESS2-3

To plates of equal density form mountains range along

• continental-to - continental Convergent boundaries

• Oceanic- to- Continental

  Convergent boundaries

• Divergent boundaries

• Transform boundaries

Tags

NGSS.MS-ESS2-2

NGSS.MS-ESS2-3

Which type of plate is shown in the figure below?

• Convergent

• Divergent

• Subduction

• Transform

What happens to Earth's magnetic field over time?

• It weakens and eventually disappears

• It stays the same

• It continually strengthens

• It changes polarity

Which of Earth;s outermost layer includes the crust and the upper mantle

• Asthenosphere

• Mantle

• Lithosphere

• Outer core

What do the arrows indicate on the Tectonic plate map?

• Magnetic polarity

• Ocean flow

• Plate movement

• Volcanic eruption

Tags

NGSS.MS-ESS2-3

What evidence helped to support the theory of seafloor spreading

• magnetic equality

• magnetic interference

• magnetic north

• magnetic polarity

Tags

NGSS.HS-ESS1-5