The rhythmic rise and fall of ocean water twice in a day is called a

There are _________ major oceans.

The ___________ is the third largest of the world's oceanic divisions. 

The busiest ocean from the point of view of trade is the ____________.

__________ are very large water bodies.

Tides are of ________ types.

The movements that occur in oceans can be broadly categorised into __________.

The __________ is the largest Earth's oceanic divisions.

_________ is suitable for drinking.

A __________ is a large body of water that is completely surrounded by land.