Geographical Articles

• Healthy Aging
  Attention Deficit Disorder
  Food Additives
  Sports Science
  Sports Medicine
  Chemistry
   
  

  Chlorine

  Chlorine is the chemical element with atomic number 17 and symbol Cl. It is a halogen, found in the periodic table in group 17. As the chloride ion, which is part of common salt and other compounds, ... > more
• Apes
  Human Evolution
  Early Humans
  Rainforests
  Healthy Aging
  Endangered Animals
   
  

  Chimpanzee

  Chimpanzee, often shortened to chimp, is the common name for the two extant species in the genus Pan. The better known chimpanzee is Pan troglodytes, the Common Chimpanzee, living primarily in West, ... > more
• Recycling and Waste
  Environmental Issues
  Oil Spills
  Nature
  Global Warming
  Pollution
   

  Biodegradation

  Biodegradation is the decomposition of organic material by microorganisms. The term biodegradation is often used in relation to sewage treatment, environmental remediation (bioremediation) and to ... > more
• Agriculture and Food
  Organic
  Sustainability
  Soil Types
  Food
  Geochemistry
   
  

  Organic farming

  Organic farming is a form of agriculture that relies on ecosystem management and attempts to reduce or eliminate external agricultural inputs, especially synthetic ones. It is a holistic production ... > more
• Earthquakes
  Natural Disasters
  Tsunamis
  Exotic Species
  Wildfires
  Tornadoes
   

  1923 Great Kanto earthquake

  The 1923 Great Kanto earthquake struck the Kanto plain on the Japanese main island of Honshu at 11:58 on the morning of September 1, 1923. The quake was later estimated to have had a magnitude ... > more
• Organic Chemistry
  Extreme Survival
  Marine Biology
  Healthy Aging
  Chemistry
  Attention Deficit Disorder
   
  

  Oxygen

  Oxygen is a chemical element in the periodic table. It has the symbol O and atomic number 8. The element is the most common on Earth, composing around 46% of the mass of Earth's crust, and is the ... > more
• Water
  Weather
  Severe Weather
  Pollution
  Environmental Issues
  Atmosphere
   
  

  Dew point

  The dew point or dewpoint of a given parcel of air is the temperature to which the parcel must be cooled, at constant barometric pressure, for the water vapor component to condense into water, called ... > more
• Hurricanes and Cyclones
  Floods
  Severe Weather
  Construction
  Sports Science
  Civil Engineering
   
  

  Levee failures in Greater New Orleans, 2005

  In 2005, as a result of Hurricane Katrina, there were extensive failures of the levees and flood walls protecting New Orleans, Louisiana and surrounding communities. There were also extensive ... > more
• Renewable Energy
  Nuclear Energy
  Energy and the Environment
  Weapons Technology
  Environmental Science
  Hazardous Waste
   
  

  Nuclear power plant

  A nuclear power plant (NPP) is a thermal power station in which the heat source is one or more nuclear reactors. Nuclear power plants are base load stations, which work best when the power output is ... > more
• Tornadoes
  Severe Weather
  Hurricanes and Cyclones
  Natural Disasters
  Storms
  Climate
   
  

  Easter Week 2006 Tornado Outbreak Sequence

  The Easter Week 2006 Tornado Outbreak Sequence was a tornado outbreak sequence during the days leading up to Easter and continued into the first week after Easter. It was the third major outbreak of ... > more

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