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Inside Earth 1:4
Ch. 1 Sec. 4 Seafloor Spreaing
Question | Answer |
---|---|
deep-ocean trench | A deep valley along the ocean floor |
mid-ocean ridge | Giant undersea mountain range |
sonar | A system that uses the reflection of underwater sound waves to detect objects. |
seafloor spreading | the idea that the middle of the ocean is spreading apart |
subduction | Process in which oceanic crust sinks beneath a deep-ocean trench |