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ecosystem

An ecosystem is a community made up of living organisms and nonliving components such as air, water and mineral soil. Ecosystems may be studied either as contingent collections of plants and animals, or as structured systems and communities that are governed by general rules. The biotic and abiotic components interact through nutrient cycles and energy flows. Ecosystems include a network of interactions among organisms, and between organisms and their environment. Ecosystems can be of any size but one ecosystem has a specific, limited space. Some scientists view the entire planet as one ecosystem. Energy, water, nitrogen and soil minerals are other essential abiotic components of an ecosystem. The energy that flows through ecosystems comes primarily from the sun, through photosynthesis. Photosynthesis also captures carbon dioxide from the atmosphere. Animals also play an important role in the movement of matter and energy through ecoystems.
Gold autumn - Beautiful colors of golden autumn
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Gold autumn

Added 3 days ago by Maria 47

83

Great Barrier Reef. - Great Barrier Reef in Australia.
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Great Barrier Reef.

Added 3 days ago by Zeta

99 1

Oceanic world. - Oceanic underwater world.
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Oceanic world.

Added 4 days ago by Grażyna

42

Rainbow mountains. - Multicolored mountains on our land.
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Rainbow mountains.

Added 4 days ago by Grażyna

37

Colors of autumn. - Fiery colors of colorful autumn.
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Colors of autumn.

Added 5 days ago by Grażyna

49

Redwoods. - Sequoias in Redwood National Park, California.
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Redwoods.

Added 5 days ago by Zeta

25 1

Autumn in the park. - Beautiful autumn in the park.
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Autumn in the park.

Added 5 days ago by Zeta

38

Lane in the forest. - A path in a foggy forest.
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Lane in the forest.

Added 5 days ago by Zeta

35

Brook. - Spanish summer and a brook.
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Brook.

Added 5 days ago by Zeta

18

Bieszczady. - Autumn in the Bieszczady.
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Bieszczady.

Added 6 days ago by Zeta

55

A magical sunset - A sunset full of magic. Nature is amazing, surprises with its charms. Trees have a soul.
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A magical sunset

Added week ago by Ewa

86 1

Hot summer. - Hot Spanish summer.
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Hot summer.

Added 8 days ago by Grażyna

267

Mountain landscape. - Landscape. Mountain meadow.
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Mountain landscape.

Added 9 days ago by Grażyna

163 1

Cottage on the river. - A charming house by the river.
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Cottage on the river.

Added 13 days ago by Grażyna

352

Świeradów Zdrój. - Queue to Stóg Izerski.
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Świeradów Zdrój.

Added 13 days ago by Grażyna

53

road through the forest - road through the autumn forest
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road through the forest

Added 13 days ago by Agul

259 1

Colorful autumn. - Colorful autumn in painting.
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Colorful autumn.

Added 2 weeks ago by Grażyna

71

autumn colors - landscape in autumn colors
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autumn colors

Added 2 weeks ago by Agul

276

Caribbean. - Underwater life in the Caribbean.
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Caribbean.

Added 3 weeks ago by Grażyna

223 1

Cat tree. - Cat cat tree in the garden.
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Cat tree.

Added 3 weeks ago by Mila

26

autumn colors - How not to love autumn, its purple colors ...
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autumn colors

Added 3 weeks ago by Elizabeth

94

Coral reef. - Life on a coral reef.
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Coral reef.

Added 3 weeks ago by Grażyna

57

Kashubian meadow - spring meadow in Kashubia
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Kashubian meadow

Added 3 weeks ago by Druuna

61

Road among birches. - Autumnal road among birches.
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Road among birches.

Added 3 weeks ago by Zeta

103 2

morning fog - landscape, forest, fog, rays of the sun
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morning fog

Added 3 weeks ago by sandra

51 1

Blossoming goldenrod. - Goldenrod is a harbinger of autumn. Unfortunately...
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Blossoming goldenrod.

Added 3 weeks ago by Zeta

76 1

mossy branch - mossy branch, forest, forest landscape
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mossy branch

Added 3 weeks ago by sandra

47

Underwater world. - Australia. Underwater world.
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Underwater world.

Added 3 weeks ago by Grażyna

198

Kashubian boletus. - It's probably one of those last year's Bogna.
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Kashubian boletus.

Added 4 weeks ago by Zeta

136 3

River Bug. - River Bug in Podlasie.
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River Bug.

Added 4 weeks ago by Zeta

55

Forest in Suścu - Susiec on Roztocze - the forest and the approaching storm
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Forest in Suścu

Added 4 weeks ago by Mila

32

field of sunflowers - field of sunflowers, sunset
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field of sunflowers

Added 4 weeks ago by Elizabeth

85