3 Written Questions
3 Multiple Choice Questions
- In sea-floor spreading, the sea floor spreads apart along both sides of a mid-ocean ridge as new crust is added. As a result, the ocean floors move like conveyor belts, carrying the continents along with them.
- deep underwater canyons
- a process that continually adds new material to the ocean floor
2 True/False Questions
What happens at deep-ocean trenches? → deep underwater canyons
subduction → the process by which the ocean floor sinks beneath a deep-ocean trench and back into the mantle