Caving Articles

• Grassland
  Animals
  Wild Animals
  New Species
  Dogs
  Agriculture and Food
   
  

  Rabbit

  Rabbits are small mammals in the family Leporidae, found in many parts of the world. They are sometimes affectionately known as bunnies, especially by children. There are seven different genera in ... > more
• Water
  Geography
  Floods
  Environmental Policy
  Drought Research
  Earth Science
   
  

  Waterfall

  A waterfall is usually a geological formation resulting from water, often in the form of a stream flowing over an erosion-resistant rock formation that forms a sudden break in ... > more
• Atmosphere
  Air Quality
  Air Pollution
  Climate
  Geochemistry
  Environmental Issues
   
  

  Earth's atmosphere

  Earth's atmosphere is a layer of gases surrounding the planet Earth and retained by the Earth's gravity. It contains roughly 78% nitrogen and 21% oxygen 0.97% argon and carbon dioxide 0.04% trace ... > more
• Mining
  Geology
  Earth Science
  Geochemistry
  Oceanography
  Earthquakes
   
  

  Quartz

  Quartz is one of the most common minerals in the Earth's continental crust. It belongs to the hexagonal crystal system, and is made up of silica (SiO2) tetrahedra. Quartz has a hardness of 7 on the ... > more
• Insects (including Butterflies)
  Zoology
  Exotic Species
  Invasive Species
  Agriculture and Food
  Animals
   
  

  Moth

  A moth is an insect closely related to the butterfly. Moths, and more particularly their caterpillars, are a major agricultural pest in many parts of the world. Moths are apparently attracted to ... > more
• Recycling and Waste
  Hazardous Waste
  Environmental Science
  Environmental Issues
  Earth Science
  Grassland
   

  Activated sludge

  Activated sludge is a process in sewage treatment in which air or oxygen is forced into sewage liquor to develop a biological floc which reduces the organic content of the ... > more
• Ecology Research
  Ecology
  Nature
  Biology
  New Species
  Environmental Issues
   
  

  Ecological succession

  Ecological succession, a fundamental concept in ecology, refers to more-or-less predictable and orderly changes in the composition or structure of an ecological community. Succession may be initiated ... > more
• Recycling and Waste
  Hazardous Waste
  Environmental Science
  Environmental Issues
  Renewable Energy
  Energy and the Environment
   
  

  Landfill

  Landfill is a waste disposal site for the deposit of the waste onto or into land. Most modern landfills require a minimum of one containment ... > more
• Geology
  Earth Science
  Atmosphere
  Earthquakes
  Geochemistry
  Natural Disasters
   
  

  Geophysics

  Geophysics, the study of the earth by quantitative physical methods, especially by seismic reflection and refraction, geodesy, gravity, magnetic, electrical, electromagnetic, and radioactivity ... > more
• Soil Types
  Water
  Agriculture and Food
  Environmental Issues
  Drought Research
  Drought
   
  

  Irrigation

  Irrigation (in agriculture) is the replacement or supplementation of rainfall with water from another source in order to grow crops. The water source for irrigation may be a nearby or distant body of ... > more

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