The Gulf of Bothnia
A vast bay in the northern part of the Baltic Sea. It's long from north to south, and many rivers flow into here. This may explain why the salt concentration is low and why it sometimes freezes in winter.
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The Gulf of Bothnia
A vast bay in the northern part of the Baltic Sea. It's long from north to south, and many rivers flow into here. This may explain why the salt concentration is low and why it sometimes freezes in winter.
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