atlantic
The pentland firth
The North Sea separates Britain from the mainland of Europe. Britain is an island that has three countries on, which are England, Wales and Scotland. Only England and Scotland have a North Sea coastline.
The Irish Sea.
The body of water that separates Britain from mainland Europe is the English Channel. It is a narrow stretch of water that connects the Atlantic Ocean to the North Sea. The channel is approximately 21 miles wide at its narrowest point.
the orkneys
The sea that separates Ireland and Northern Ireland from Great Britain is called the Irish Sea. The area of sea immediately north of the Irish Sea is called the North Channel, and separates Northern Ireland from Scotland.
The Sea of Japan separates the island of Japan from mainland Korea.
Bass Strait separates mainland Australia from the island state of Tasmania.
sea of Japan
Bass Strait separates the mainland of Australia from Tasmania
The body of water which separates the island state of Tasmania from mainland Australia is Bass Strait.
The Tyrrhenian Sea is a portion of the Mediterranean Sea. The Tyrrhenian Sea separates the island of Sardinia from Italy.