,sea-floor Spreading Flashcards
0
Q
What is a mid-ocean ridge
A
A line of mountains all underwater (except for in Iceland)
1
Q
What is a sonar
A
A device used by scientists to map the ocean floor.
2
Q
What is sea-floor spreading
A
The process of adding new material to the ocean floor
3
Q
What is subduction
A
When old ocean crust is sucked into the mantle
