Question

The "newest" named ocean is the ____ Ocean.

Southern
Northern
2.
Ocean water contains about ___% salt.
3
5
7
3.
Mountains and volcanoes that are underwater are called _______.
seamounts
trenches
4.
When you are at the beach, you are playing in the sand of the _________________.
sea floor
continental shelf

Answer 1

southern, 3, seamounts, continental shelf

Answer 2

Answer: southern, 3, seamounts, continental shelf

Step-by-step explanation:

tell me if it is right