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Ocean - online puzzles

16Pink Lake, Australiasolved 43 times
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16white lighthouse on rocky hill near body of watersolved 43 times
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81TASK FOR RACEsolved 43 times
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16A view of Naxossolved 41 times
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49A waterfall flowing into the ocean over cliff.solved 39 times
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49ocean waves crashing on rockssolved 39 times
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16Kleftikosolved 38 times
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100golden gate bridge under blue sky during daytimesolved 38 times
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25green palm trees on beach shore during daytimesolved 38 times
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palm tree on beach during daytime online puzzle
100palm tree on beach during daytimesolved 38 times
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boat trip and full moon online puzzle
16boat trip and full moonsolved 37 times
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aerial photo of buildings on mountain sliding puzzle online
36aerial photo of buildings on mountainsolved 36 times
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body of water during sunset sliding puzzle online
9body of water during sunsetsolved 36 times
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cliff near body of water during daytime sliding puzzle online
9cliff near body of water during daytimesolved 34 times
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person standing on brown rock formation near body of water sliding puzzle online
9person standing on brown rock formation near body of watersolved 34 times
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? Blue Heaven ☁️ sliding puzzle online
64? Blue Heaven ☁️solved 33 times
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Balança Beach online puzzle
25Balança Beachsolved 33 times
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klungkung bali indonesia online puzzle
25klungkung bali indonesiasolved 33 times
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rock bridge near the village of Tyulenovo sliding puzzle online
36rock bridge near the village of Tyulenovosolved 31 times
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two beach chairs in the sand near ocean online puzzle
16two beach chairs in the sand near oceansolved 30 times
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hand drawn watercolor houses online puzzle
16hand drawn watercolor housessolved 29 times
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S17chal5 online puzzle
16S17chal5solved 29 times
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green trees on seashore under blue sky during daytime online puzzle
9green trees on seashore under blue sky during daytimesolved 28 times
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green trees beside body of water during daytime online puzzle
64green trees beside body of water during daytimesolved 28 times
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short-coated brown dog sitting on snow field sliding puzzle online
25short-coated brown dog sitting on snow fieldsolved 27 times
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Sweet Dreams sliding puzzle online
36Sweet Dreamssolved 27 times
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ferris wheel on dock during sunset sliding puzzle online
16ferris wheel on dock during sunsetsolved 27 times
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aerial view of city buildings during daytime online puzzle
81aerial view of city buildings during daytimesolved 27 times
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brown rocks on sea shore during daytime sliding puzzle online
36brown rocks on sea shore during daytimesolved 27 times
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city buildings under blue sky during daytime online puzzle
36city buildings under blue sky during daytimesolved 27 times
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the beauty of the sea sliding puzzle online
16the beauty of the seasolved 27 times
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Sanibel Sunset sliding puzzle online
36Sanibel Sunsetsolved 27 times
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sunset ......................... sliding puzzle online
36sunset .........................solved 26 times
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birds eye photography of body of water online puzzle
16birds eye photography of body of watersolved 26 times
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brown wooden chairs on beach during daytime online puzzle
36brown wooden chairs on beach during daytimesolved 26 times
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green trees on island surrounded by water online puzzle
81green trees on island surrounded by watersolved 26 times
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silhouette of sailboat on sea during sunset online puzzle
64silhouette of sailboat on sea during sunsetsolved 26 times
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high-angle photography of white boat on blue ocean water online puzzle
64high-angle photography of white boat on blue ocean watersolved 26 times
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CHALLENGE #7 online puzzle
36CHALLENGE #7solved 26 times
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Sunset South sliding puzzle online
9Sunset Southsolved 25 times
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Lost in the Wilderness online puzzle
36Lost in the Wildernesssolved 25 times
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sunrise over the ocean sliding puzzle online
25sunrise over the oceansolved 25 times
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aerial view of green mountain beside body of water sliding puzzle online
100aerial view of green mountain beside body of watersolved 25 times
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ocean waves crashing on shore during daytime online puzzle
16ocean waves crashing on shore during daytimesolved 25 times
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bloxifjewuiofjeofjoifjosfjijfio online puzzle
36bloxifjewuiofjeofjoifjosfjijfiosolved 25 times
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Bath Toys online puzzle
16Bath Toyssolved 25 times
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aerial green island online puzzle
9aerial green islandsolved 24 times
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body of water near trees sliding puzzle online
36body of water near treessolved 24 times
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Online puzzle Ocean

Ocean

The ocean (also known as the sea or the world ocean) is a body of salt water that covers approximately 70.8% of the Earth and contains 97% of Earth's water. The term ocean also refers to any of the large bodies of water into which the world ocean is conventionally divided. Distinct names are used to identify five different areas of the ocean: Pacific (the largest), Atlantic, Indian, Southern, and Arctic (the smallest). Seawater covers approximately 361,000,000 km2 (139,000,000 sq mi) of the planet. The ocean is the primary component of the Earth's hydrosphere, and thus essential to life on Earth. The ocean influences climate and weather patterns, the carbon cycle, and the water cycle by acting as a huge heat reservoir.

Oceanographers split the ocean into vertical and horizontal zones based on physical and biological conditions. The pelagic zone is the open ocean's water column from the surface to the ocean floor. The water column is further divided into zones based on depth and the amount of light present. The photic zone starts at the surface and is defined to be "the depth at which light intensity is at least 1% of the surface value": 36  (approximately 200 m in the open ocean). This is the zone where photosynthesis can occur. In this process plants and microscopic algae (free floating phytoplankton) use light, water, carbon dioxide, and nutrients to produce organic matter. As a result, the photic zone is the most biodiverse and the source of the food supply which sustains most of the ocean ecosystem. Ocean photosynthesis also produces half of the oxygen in the earth's atmosphere. Light can only penetrate a few hundred more meters; the rest of the deeper ocean is cold and dark (these zones are called mesopelagic and aphotic zones). The continental shelf is where the ocean meets dry land. It is more shallow, with a depth of a few hundred meters or less. Human activity often has negative impacts on ecosystems within the continental shelf.

Ocean temperatures depend on the amount of solar radiation reaching the ocean surface. In the tropics, surface temperatures can rise to over 30 °C (86 °F). Near the poles where sea ice forms, the temperature in equilibrium is about −2 °C (28 °F). In all parts of the ocean, deep ocean temperatures range between −2 °C (28 °F) and 5 °C (41 °F). Constant circulation of water in the ocean creates ocean currents. These directed movements of seawater are caused by forces operating on the water, such as temperature variations, atmospheric circulation (wind), the Coriolis effect and salinity changes. Tides create tidal currents, while wind and waves cause surface currents. The Gulf Stream, Kuroshio Current, Agulhas Current and Antarctic Circumpolar Current are all major ocean currents. Currents transport massive amounts of water and heat around the world. By transporting these pollutants from the surface into the deep ocean, this circulation impacts global climate and the uptake and redistribution of pollutants such as carbon dioxide.

Ocean water contains a high concentration of dissolved gases, including oxygen, carbon dioxide and nitrogen. This gas exchange occurs at the ocean's surface and solubility depends on the temperature and salinity of the water. The increasing concentration of carbon dioxide in the atmosphere due to fossil fuel combustion causes higher amounts in ocean water, resulting in ocean acidification. The ocean provides crucial environmental services to mankind, including climate regulation. It also provides a means of trade and transport as well as access to food and other resources. It is known to be the habitat of over 230,000 species, but may hold considerably more – perhaps over two million species. However, the ocean is subject to numerous human-caused environmental threats, including marine pollution, overfishing, and effects of climate change on oceans, such as ocean warming, ocean acidification, sea level rise among others. The continental shelf and coastal waters most affected by human activity are particularly vulnerable.