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How many major oceans are there?
Where did the oceans come from
Why can't comets be a main source of Earths water?
Where is the deepest part of the ocean?
When did oceans start forming?
What is the largest and deepest ocean?
What is the smallest ocean?
What do scientists measure in the ocean?
What does SONAR stand for?
Bathymetry
What is SONAR, and how does it work?
What are continental margins?
What is a passive continental margin?
What is an active continental margin?
What is a deep ocean basin?
What are the three different types of sediments?
