The ocean was calm.
Has a change in ocean currents occurred?
Although most islands in the ocean have been mapped, the ocean floor is generally unknown.
Mountains in the ocean and even whole ranges are still being discovered, and most of them have not yet been explored in detail.
I want to submerge myself in the ocean depths, and to disappear there so as to never be seen again.
Large-scale surface currents are already known to exist, and major currents below the ocean surface, too, are being found.
First of all, the level of the ocean could rise, because ocean water expands as it grows warmer.
If we are to judge the future of ocean study by its past, we can surely look forward to many exciting discoveries.
But she had not expected to cross an ocean, enter a new and romantic-sounding country, and find herself in exactly the same position.
And in the Indian Ocean, some islands of the Maldives will disappear completely beneath the water.
Kiedyś przepłynięcie oceanu zajmowało ludziom tygodnie.
Pacyfik jest największym oceanem.
Further investigation will offer many opportunities to obtain more valuable knowledge of the ocean.
When violent extremists operate in one stretch of mountains, people are endangered across an ocean.
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