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Plate Tectonics. TEACHERS: click here for quick copy question ID numbers.

________________ found alternating bands of rocks and recorded normal and reversed polarity that were arranged symmetrically around mid-ocean ridges.
a) Magnetometers
b) Stereo frequencies
c) Large underwater collection stations
d) Sonar consoles

Earth's magnetic field never changes.
a) True
b) False
c)
d)

Plate tectonics is:
a) Alfred Wegener’s original theory that was rejected by other scientists.
b) the theory that plates under the ocean give off low level sound frequencies.
c) unproven and scientists instead use the theory of relativity.
d) the theory that Earth's outer shell is divided into several plates that glide over the mantle.

The device for detecting objects/terrain underwater by means of sound waves sent out to be reflected by the objects/terrain is called:
a) SCUBA
b) Sonar
c) Kevlar
d) Magnetometer

Who was the founder of Plate Tectonic Theory?
a) Alfred Wegener
b) Teddy Roosevelt
c) Bill Nye
d) Harry Hess

Plate tectonic theory was proven in 1860 by Chinese fishing boat captains.
a) True
b) False
c)
d)

Two important figures in proving the theory of Continental Drift and Plate Tectonics were:
a) Batman and Robin
b) Watson and Crick
c) Wegener and Hess
d) Proctor and Gamble

The seafloor is:
a) comprised of canyons, trenches, and volcanic sea mountains.
b) completely flat and packed with sand.
c) too deep to explore.
d) is actually fresh water.

Harry Hess continued his work while enlisted as a ship captain in the military.
a) True
b) False
c)
d)

Seafloor spreading is caused by:
a) marine life carcasses floating to the bottom of the ocean.
b) machines fracking for natural gas.
c) magma pushing up through oceanic crust, pushing plates apart.
d) pollution from plastic bottles and computer waste.

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