Earthquake Articles

• Soil Types
  Organic
  Acid Rain
  Fungus
  Landslides
  Agriculture and Food
   

  Soil pH

  Soil pH is an indication of the alkalinity or acidity of soil. It is based on the measurement of pH, which is based in turn on the activity of hydrogen ions (H+) in a water or salt ... > more
• Exotic Species
  Invasive Species
  Botany
  Endangered Plants
  Seeds
  Nature
   
  

  Purple loosestrife

  Purple loosestrife is a semi-aquatic herbaceous plant belonging to the loosestrife family, Lythraceae, native to the wetlands of Eurasia. It is a herbaceous perennial plant, growing 1-2 m tall, ... > more
• Recycling and Waste
  Hazardous Waste
  Water
  Environmental Science
  Atmosphere
  Environmental Issues
   
  

  Septic tank

  A septic tank is part of a small scale sewage treatment system often referred to as a septic system, which consists of the tank itself and a septic drain ... > more
• Hurricanes and Cyclones
  Severe Weather
  Weather
  Storms
  Climate
  Ecosystems
   
  

  Labor Day Hurricane of 1935

  The Labor Day Hurricane was a very compact, intense hurricane that formed in the North Atlantic during August 1935. It remains the strongest hurricane on record to have struck the United States, and ... > more
• Global Warming
  Nature of Water
  Ice Ages
  Climate
  Oceanography
  Snow and Avalanches
   
  

  Ice shelf

  An ice shelf is a thick, floating platform of ice that forms where a glacier or ice sheet flows down to a coastline and onto the ocean surface, typically in Antarctica or Greenland. The boundary ... > more
• Volcanoes
  Global Warming
  Severe Weather
  Weather
  Geography
  Storms
   

  Year Without a Summer

  The Year Without a Summer, also known as the Poverty Year and Eighteen hundred and froze to death, was 1816, in which severe summer climate abnormalities destroyed crops in Northern Europe, the ... > more
• Exotic Species
  Invasive Species
  Ecology Research
  Ecology
  Geography
  Water
   
  

  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

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