The usual term for a coral island is an atoll. Some exist in otherwise deep ocean waters.
A complete area of shadow is called an umbra. It is the darkest part of a shadow where no light reaches.
An ocean.
A Very Large Expense Area Of The Sea Is Called OceanFor Example!Atlantic Ocean.
The area where a freshwater river or stream enters the ocean is called an estuary. It is a coastal area of brackish water formed when freshwater enters the ocean.
The area of the ocean that is reached by sunlight is called the euphotic zone. It is home to many sea turtles and marine mammals that are protected.
The river runs through a country and finally when it reaches the end of the area of land it will flow out into the open ocean.
In 1935, he gained control of a small area called the Saar Basin.
A small fertile area in a desert is called an oasis.An oasis.
A Very Large Expense Area Of The Sea Is Called OceanFor Example!ATLANTIC OCEAN.
The Littoral Zone .
Intertidal Zone