sea

A sea is a large body of salt water that is surrounded in whole or in part by land. More broadly, "the sea" is the interconnected system of Earth's salty, oceanic waters—considered as one global ocean or as several principal oceanic divisions. The sea moderates Earth's climate and has important roles in the water cycle, carbon cycle, and nitrogen cycle. Although the sea has been traveled and explored since prehistory, the modern scientific study of the sea—oceanography—dates broadly to the British Challenger expedition of the 1870s. The sea is conventionally divided into up to five large oceanic sections—including the International Hydrographic Organization's four named oceans (the Atlantic, Pacific, Indian, and Arctic) and the Southern Ocean; smaller, second-order sections, such as the Mediterranean, are known as seas. Owing to the present state of continental drift, the Northern Hemisphere is now fairly equally divided between land and sea (a ratio of about 2:3) but the South is overwhelmingly oceanic (1:4.7). Salinity in the open ocean is generally in a narrow band around 3.5% by mass, although this can vary in more landlocked waters, near the mouths of large rivers, or at great depths. About 85% of the solids in the open sea are sodium chloride. Deep-sea currents are produced by differences in salinity and temperature. Surface currents are formed by the friction of waves produced by the wind and by tides, the changes in local sea level produced by the gravity of the Moon and Sun.
Venice. - Rainy and cloudy Venice.
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Venice.

Added 3 days ago by Grażyna

84

Polish sea. - Slowinski National Park.
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Polish sea.

Added 3 days ago by Zeta

72

seaside landscape - sea ​​landscape, ocean, lagoon
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seaside landscape

Added 4 days ago by sandra

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seaside landscape - sea, beach, palm trees, beach hut
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seaside landscape

Added 4 days ago by sandra

63

Summer bath. - Summer bath in the river.
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Summer bath.

Added 4 days ago by Zeta

49

San Francisco. - San Francisco. View of Alcatraz.
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San Francisco.

Added 4 days ago by Zeta

13

Hanging bridge. - Hanging bridge. South Africa.
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Hanging bridge.

Added 5 days ago by Zeta

96

Seascape. - Seascape. Headland.
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Seascape.

Added 5 days ago by Zeta

49

Sea landscape. - Sunny sea landscape.
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Sea landscape.

Added 5 days ago by Zeta

27

Phi Phi. Thailand. - Boats on Phi Phi. Thailand.
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Phi Phi. Thailand.

Added 6 days ago by Zeta

28

Kayak on the shore. - Yellow canoe on the shore.
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Kayak on the shore.

Added 6 days ago by Zeta

70

Bridge in Taiwan. - Bridge between the islands in Taiwan.
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Bridge in Taiwan.

Added 6 days ago by Zeta

84

Beach in Seychelles. - Beach in Seychelles. Indian Ocean.
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Beach in Seychelles.

Added 6 days ago by Zeta

33

Kurts on the seashore. - Cutters on the seashore.
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Kurts on the seashore.

Added 6 days ago by Zeta

30

Island. Thailand. - One of the Thai islets.
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Island. Thailand.

Added 6 days ago by Zeta

21

Flamingos. - Flamingos wading in the ocean.
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Flamingos.

Added 6 days ago by Zeta

38

Ship by the seafront. - Ship by the seafront.
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Ship by the seafront.

Added 6 days ago by Zeta

24

Cliffs in England. - Coastal cliffs in England.
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Cliffs in England.

Added 6 days ago by Zeta

48

tropical beach - relaxing tropical beach
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tropical beach

Added 6 days ago by gra

31

Holidays in the Bahamas. - Holidays in the Bahamas.
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Holidays in the Bahamas.

Added week ago by Zeta

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Sunset in Belize. - Sunset in Belize.
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Sunset in Belize.

Added week ago by Zeta

53

Australia. - Australia. Landscape.
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Australia.

Added week ago by Zeta

36

Lake View. - One of the lakes in Switzerland.
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Lake View.

Added 8 days ago by Grażyna

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BAJKOWY VIEW - Leave, rest, relax
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BAJKOWY VIEW

Added 9 days ago by ada

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BAJKOWY VIEW - Leave, rest, relax
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BAJKOWY VIEW

Added 9 days ago by ada

65

BAJKOWY VIEW - Leave, rest, relax
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BAJKOWY VIEW

Added 9 days ago by ada

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