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biosphere
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Earth's environmental spheres Earth's known living species ecosystem energy transfer energy flow nitrogen cycle nitrogen fixation energy exchange osmotic regulation terrestrial hot spots of biodiversity
How greenhouse gases affect Earth's climate
For Students
biosphere summary
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Model of global ocean currents and temperatures
How Do Ocean Currents Affect the Biosphere?
A large school of mano (sharks) called Galapagos sharks at Maro Reef in the Papahanaumokuakea Marine National Monument. Galapagos shark (Carcharhinus galapagensis)a worldwide species of requiem shark, family Carcharhinidae.
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Rusty patched bumble bee (Bombus affinis) photographed in the Midwest in 2017. endangered species insect pollination
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Community service - volunteers picking up garbage in a park during a spring cleanup. Environmentalism
A Timeline of Environmental History
Path through summer forest in the Ukraine. (trees, lush, green, walk, walkway, road, Ukrainia, Ukrainian, woods)
What Is the Difference Between Primary and Secondary Ecological Succession?
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Woman tied to a ducking stool, a method of punishment by means of humiliation, beating, or death. (cucking stool)
8 Unusual Punishments Inflicted on Women Throughout History
A Factory Interior, watercolor, pen and gray ink, graphite, and white goache on wove paper by unknown artist, c. 1871-91; in the Yale Center for British Art. Industrial Revolution England
Inventors and Inventions of the Industrial Revolution
Title: Senate Square, St. Petersburg, December 14, 1825: repression of the troop mutiny - watercolor by Carl Ivanovitch Kollman, 1825 depicts Decembrist uprising clashing with cavalry, with spectators watching. (new style December 26, 1825) Europe. Saint
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Mayer Amschel Rothschild (1744-1855), founder of the house of Rothschild; lithograph by Friedrich Lieder, c. 1830.
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Thanksgiving Turkey with all the sides
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A human Inuit skull in a stone chambered cairn in Ilulissat in Greenland. These ancient graves are pre christian and are at least 2000
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Baseball laying in the grass. Homepage blog 2010, arts and entertainment, history and society, sports and games athletics
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Photos and Videos

Earth's environmental spheres
Earth's known living species
ecosystem energy transfer
energy flow
nitrogen cycle
nitrogen fixation
energy exchange
osmotic regulation
terrestrial hot spots of biodiversity
How greenhouse gases affect Earth's climate
The importance of nitrogen and phosphorus in ecosystems
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