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Atmosphere - online puzzles

40Morning in New Orleanssolved 3,626 times
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60Sailingsolved 3,520 times
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35Sunset over Dalmatia (Croatia)solved 3,498 times
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15cosmossolved 3,223 times
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48Sunrise on the coast of Helsinki (Finland)solved 3,026 times
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35Bridge of Lions in Saint Augustine (USA)solved 3,024 times
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45Port entrance in Darłowo (Poland)solved 2,943 times
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24Winter Old Town of Tallinn (Estonia)solved 2,943 times
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70Sunset over the Pacific coastsolved 2,815 times
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70Geyser eruption in the Yellowstone Park (USA)solved 2,736 times
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35Mazovian landscape with the Narew River (Poland)solved 2,689 times
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80Sunset on the pier in Sopot (Poland)solved 2,642 times
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View of Birmingham in Alabama (USA) online puzzle
35View of Birmingham in Alabama (USA)solved 2,608 times
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Alpamayo peak (Peru) online puzzle
56Alpamayo peak (Peru)solved 2,473 times
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cosmos puzzle online from photo
15cosmossolved 2,396 times
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Sunset over a mountain village covered with snow puzzle online from photo
77Sunset over a mountain village covered with snowsolved 2,358 times
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Bird’s eye view of Quito (Ecuador) puzzle online from photo
54Bird’s eye view of Quito (Ecuador)solved 2,269 times
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Winter in a Carpathian village (Romania) online puzzle
49Winter in a Carpathian village (Romania)solved 2,266 times
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Balloons on a background of sunrise in Cappadocia (Turkey) online puzzle
42Balloons on a background of sunrise in Cappadocia (Turkey)solved 2,087 times
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Sunrise over the river Narew (Poland) puzzle online from photo
580Sunrise over the river Narew (Poland)solved 2,062 times
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Lighthouse on the island of Ko Chang (Thailand) online puzzle
48Lighthouse on the island of Ko Chang (Thailand)solved 2,044 times
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Foggy sunrise over the Narew River (Poland) online puzzle
54Foggy sunrise over the Narew River (Poland)solved 2,006 times
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Karlstein Castle (Czech) online puzzle
96Karlstein Castle (Czech)solved 2,001 times
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Los Glaciares National Park (Argentina) puzzle online from photo
66Los Glaciares National Park (Argentina)solved 1,948 times
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Mount Ďumbier (Slovakia) online puzzle
40Mount Ďumbier (Slovakia)solved 1,927 times
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Lake Alpsee in Bavaria (Germany) online puzzle
48Lake Alpsee in Bavaria (Germany)solved 1,916 times
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Barmsee lake in Bavaria (Germany) online puzzle
70Barmsee lake in Bavaria (Germany)solved 1,849 times
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Solar system puzzle online from photo
20Solar systemsolved 1,845 times
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Hercilio Luz Bridge in Florianópolis (Brazil) puzzle online from photo
54Hercilio Luz Bridge in Florianópolis (Brazil)solved 1,707 times
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Mount Batur (Indonesia) online puzzle
54Mount Batur (Indonesia)solved 1,630 times
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Evening panorama of Milwaukee (USA) puzzle online from photo
54Evening panorama of Milwaukee (USA)solved 1,470 times
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Night panorama of Hong Kong (China) online puzzle
40Night panorama of Hong Kong (China)solved 1,427 times
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Mistical lake puzzle online from photo
96Mistical lakesolved 1,397 times
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Mount Fitz Roy on De Los Tres Lagoon (Argentina) online puzzle
63Mount Fitz Roy on De Los Tres Lagoon (Argentina)solved 1,367 times
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Pier in St. Augustine (USA) online puzzle
60Pier in St. Augustine (USA)solved 1,355 times
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Illuminated Chicago at dusk (USA) puzzle online from photo
77Illuminated Chicago at dusk (USA)solved 1,351 times
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New York City (USA) online puzzle
54New York City (USA)solved 1,338 times
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March thaw online puzzle
48March thawsolved 1,298 times
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Isalo National Park (Madagascar) puzzle online from photo
70Isalo National Park (Madagascar)solved 1,261 times
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Alsace - France XI puzzle online from photo
36Alsace - France XIsolved 1,256 times
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Sunset over City of Seattle (USA) puzzle online from photo
84Sunset over City of Seattle (USA)solved 1,241 times
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Evening panorama of Manhattan with the Tribute in Light (USA) online puzzle
60Evening panorama of Manhattan with the Tribute in Light (USA)solved 1,238 times
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Manhattan skyline online puzzle
55Manhattan skylinesolved 1,227 times
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Northern lights in Lapland (Finland) online puzzle
88Northern lights in Lapland (Finland)solved 1,224 times
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Paris at sunset (France) online puzzle
63Paris at sunset (France)solved 1,168 times
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Wind turbines farm online puzzle
54Wind turbines farmsolved 1,138 times
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Sunset in Brittany (France) puzzle online from photo
77Sunset in Brittany (France)solved 1,119 times
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Los Angeles coast seen from Rancho Palos Verdes (USA) online puzzle
60Los Angeles coast seen from Rancho Palos Verdes (USA)solved 1,115 times
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Online puzzle Atmosphere

Atmosphere

An atmosphere (from Ancient Greek ἀτμός (atmós) 'vapour, steam', and σφαῖρα (sphaîra) 'sphere') is a layer of gas or layers of gases that envelop a planet, and is held in place by the gravity of the planetary body. A planet retains an atmosphere when the gravity is great and the temperature of the atmosphere is low. A stellar atmosphere is the outer region of a star, which includes the layers above the opaque photosphere; stars of low temperature might have outer atmospheres containing compound molecules.

The atmosphere of Earth is composed of nitrogen (78 %), oxygen (21 %), argon (0.9 %), carbon dioxide (0.04 %) and trace gases. Most organisms use oxygen for respiration; lightning and bacteria perform nitrogen fixation to produce ammonia that is used to make nucleotides and amino acids; plants, algae, and cyanobacteria use carbon dioxide for photosynthesis. The layered composition of the atmosphere minimises the harmful effects of sunlight, ultraviolet radiation, solar wind, and cosmic rays to protect organisms from genetic damage. The current composition of the atmosphere of the Earth is the product of billions of years of biochemical modification of the paleoatmosphere by living organisms.