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w4
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Total cards: 4•Content version: v4•Public deck•Updated: 8/1/2026
Card preview (4)
#1
Front (Question)
a device that bounces sound waves off underwater objects and then record the echoes of these sound waves
Back (Answer)
sonar
#2
Front (Question)
attached to ships scientists discovered a lot about the magnetic properties of the seafloor.
Back (Answer)
magnetometers
#3
Front (Question)
explained how the convection currents in the Earth’s interior make the seafloor spread.
Back (Answer)
harry hess
#4
Front (Question)
ensures that the “recycled” materials formed in the lithosphere were back to the mantle. In this recycling process which was later named as seafloor spreading the magma moves up from the mantle and erupts as pillow lava.
Back (Answer)
convection current