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.
Zuzia beach - The picture shows the beach where I would like to spend my next vacation.
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Zuzia beach

Added 3 months ago by Zuzia

182

Valley of five Ponds - One of the most beautiful valleys in our Tatras
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Valley of five Ponds

Added 3 months ago by Bożenka

245

BAJKOWY VIEW - Summer, holidays, rest
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BAJKOWY VIEW

Added 3 months ago by Ada

130

BAJKOWY VIEW - BAJKOWY LANDSCAPE, RELAXING VIEW
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BAJKOWY VIEW

Added 4 months ago by ada

103

Sharks 3 - shark sharks
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Sharks 3

Added 4 months ago by ASK

26

scenery - colorful puzzle puzzle
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scenery

Added year ago by natalia

76

wonders of nature - amazing wonders of nature and man
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wonders of nature

Added year ago by żaba

139

wonders of nature - amazing wonders of nature and man
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wonders of nature

Added year ago by żaba

129

dandelions - has 9 columns and 7 rows. Presents 3 dandelions.
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dandelions

Added year ago by Gabrysia

146

drugs and Africa - Puzzzl09ui4h3rytgyrsbnh hvjbfhjhhg
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drugs and Africa

Added year ago by marek

35

girl - girl on the beach and sunrise
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girl

Added year ago by kinia

15

tropical island - Puzzles show a beautiful tropical island
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tropical island

Added year ago by Julita

594

colorful beach - beach, sand, water, people
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colorful beach

Added year ago by wieslawa.

250

Podczele - Summer on the Polish Baltic Sea is usually unpredictable, but it can always provide eye-catching exp
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Podczele

Added year ago by Ania 1

162

Limone Lago garda - Lago di Garda limone ,,,
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Limone Lago garda

Added year ago by IRENE ,,

121

Vacation in Egypt - A great place to relax in Egypt
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Vacation in Egypt

Added year ago by mariolka

155

Lighthouse - beautiful lantern, which is very easy to arrange
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Lighthouse

Added year ago by stasa

98

summer landscape - boat trip on the lake
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summer landscape

Added year ago by Goska

107

Sunset - Beautiful sunset.
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Sunset

Added year ago by benia11x

340 2

Wyspy Kanaryjskie - widok na Ocean Spokojny
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Wyspy Kanaryjskie

Added year ago by Julia

216

muszelka - ogromna muszelka na plaży
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muszelka

Added year ago by Beatrycze

15

OCZY DZIECKA - DZIECKO W GÓRACH POMIĘDZY 2 GÓRAMI
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OCZY DZIECKA

Added year ago by ANIELA ELAS

25

monako-miasto - monako miasto morze statki
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monako-miasto

Added year ago by Iwona

126

Latolato123 - Bardzo piękne krajobrazy :)
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Latolato123

Added year ago by K.Konkel

179 1

jakieś molo - gdzieś nad Bałtykiem
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jakieś molo

Added year ago by Robin

53

zachód słońca - palmy, woda, czerwone niebo
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zachód słońca

Added over a year ago by Bożenka

478

foka czy mors - tak sobie leżę i czekam
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foka czy mors

Added over a year ago by Bogna

57

Niebo nad cudownym zalewem - Piekne niebo nad cudownym zalewem Brody
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Niebo nad cudownym zalewem

Added over a year ago by Przemo

122

piękne miejsca  na ziemi - do  zwiedzania i podziwiania
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piękne miejsca na ziemi

Added over a year ago by Halinka

35

miejsce do wypoczynku - piękne miejsca we świecie
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miejsce do wypoczynku

Added over a year ago by Halinka

324

wierzyca - widok z wierzy 319 mnpm
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wierzyca

Added over a year ago by mirek

17

piękny widok - plaża, morze, palma
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piękny widok

Added over a year ago by Basieńka

150

piękny widok - morze, plaża, drzewo
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piękny widok

Added over a year ago by Basieńka

199

miedzyzdroje - hglshghlrsudsfkgfdkjhvnkjfdygfjyguhdushgltshgkldfhga
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miedzyzdroje

Added over a year ago by wiktoria

31

morze, samolot - morze, plaża, samolot i ja
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morze, samolot

Added over a year ago by Basieńka

31