By: Elizabeth M Young
To understand the difference between a rainforest and a jungle, we first look at the definitions of "forest" and "jungle". This is not as easy as it would appear, since there are over 250 definitions for forests, alone! A jungle is generally defined as something...
By: Tim Harry
Geography and oceanography are full of terms that most people recognise, but are very difficult when it comes to actually defining them. Oceanography in particular has words like ocean, sea, gulfs and bays, and most people think that they know the difference, but there is...
An overview on earthquake aftershocks
By: W. S. Gibson
Since the traumatizing major (magnitude 7) earthquake that struck near Port-au-Prince, Haiti, on January 12, 2010, the residents of that Caribbean country have experienced the fright of a sequence of aftershocks—the smaller earthquakes or tremors that follow a major earthquake. The Relationship Between Earthquakes...
How to prepare for an earthquake
By: Lisa Van Dam
In light of what has happened in Haiti, we can all see how devastating an earthquake can be. You may be asking yourself, "How do I get prepared for a quake if I don't know that it's coming? There are some steps that you can...
What are stratovolcanoes?
By: Colleen Mart
Some of the most familiar stratovolcanos in the world are Mount Fuji, Mount Vesuvius, Mount Krakatoa, Mount Tambora and Mount Pinatubo. On the North American continent there are several stratovolcanos, Mount Shasta, Mount St. Helens, Mount Hood and Mount Rainier. Each of these volcanoes is...
By: Tim Harry
The river Nile was the lifeblood of Egypt in antiquity, but for Egyptians, Romans and Greeks alike, the source of the Nile was considered to be the ultimate mystery. The River Nile is normally measured at being the world’s longest river at 4160 miles...
How old is the earth?
By: Guy Allen
Age, Structure and Composition of the Earth Geology is the study of the Earth, its rocks and minerals and the dynamic processes involving their formation and change. Geological events affect us all to a greater or lesser extent even if they occur halfway around the...
By: Tim Harry
Most people will never have heard of red rain, after all in most people’s eyes rain is just colourless water falling from the skies. Coloured rain though is not an uncommon event, and has been often reported over the years. Arguably the most famous...
By: Elizabeth M Young
To understand the Benthic Biome, an understanding of the world's largest biome, the Ocean Biome and its various zones. In the Ocean biome, in order, there are the intertidal, pelagic, benthic, abyssal and hadal zones. Thus the benthic zone is the third deepest zone in...
A guide to using the Volcanic Explosivity Index (VEI)
By: George Leard
A guide to using the Volcanic Explosivity Index (VEI) The concept of providing a relative measure of the explosiveness of a volcano, was developed and implemented by Chris Newhall of the US Geological Survey, and Steve Self of the University of Hawaii in 1982. The...

 

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