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Zebra mussel
The Zebra mussel (Dreissena polymorpha) is a bivalve mussel native to freshwater lakes of southeast Russia. Zebra mussels are currently causing serious problems in North America and Sweden, where ... > more -
Gulf Stream
The Gulf Stream, together with its northern extension, the North Atlantic Drift, is a powerful, warm, and swift Atlantic ocean current that originates in the Gulf of Mexico, exits through the Strait ... > more -
Atmospheric chemistry
Atmospheric chemistry is a branch of atmospheric science in which the chemistry of the Earth's atmosphere and that of other planets is studied. It is a multidisciplinary field of research and draws ... > more -
Carbon cycle
The carbon cycle is the biogeochemical cycle by which carbon is exchanged between the biosphere, geosphere, hydrosphere and atmosphere of the Earth. The cycle is usually thought of as four major ... > more -
Precipitation (meteorology)
In meteorology, precipitation is any form of water that falls from the sky as part of the weather to the ground. This includes snow, rain, sleet, freezing rain, hail, and virga. Precipitation is a ... > more -
Oceanic trench
The oceanic trenches are hemispheric-scale long but narrow topographic depressions of the sea floor. They also are the deepest parts of the ocean floor. Trenches define one of the most important ... > more -
Rachel Carson
Rachel Louise Carson (May 27, 1907 - April 14, 1964) was a Pittsburgh, Pennsylvania-born zoologist and biologist whose landmark book, Silent Spring, is often credited with having launched the global ... > more -
Ocean surface wave
Ocean surface waves are surface waves that occur at the surface of an ocean. They usually result from distant winds or geologic effects and may travel thousands of miles before striking land. They ... > more
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