By: Michael Totten
A seamount is an undersea mountain which has not breached the ocean surface. Most seamounts are extinct volcanoes, but some, such as Lohi in the Hawai'ian archipelago, are still active. If a seamount grows above the ocean surface, it becomes an oceanic island. Definition Strictly...
By: Janet Grischy
When volcanoes erupt, they may send out flows of scorching lava. They may explosively eject debris high into the air instead, or may eject a combination of flowing lava and exploding debris. Tephra is a volcanologist’s term for the solid materials ejected from volcanoes...
By: Dr Pandula Siribaddana
The deep ocean floor can be described as the most unexplored region in the world and for many decades, scientists believed it to be a barren land. However, recent studies painted a very different picture with regard to the dark and cold deep ocean floors...
By: J. Lang Wood
Many creatures thrive in oceans waters. Some of them find their environmental niche in the deep ocean waters, an area that below 1000 fathoms. Very little or no light penetrates to this level, pressures can reach 1000 atms. In the past, not much was known...
How do individual conservation efforts affect worldwide availability of drinking water?
By: Ann Nurse
An American family uses about 100 gallons of water each day according to statistics. When you consider the number of countries around the world who don’t have clean water to drink, we are in an enviable position. However, each of us has the responsibility...
By: B. J. Deming
The Atlantic Ocean and its marginal seas cover approximately 20% of Earth’s surface, extending from the eastern shores of North and South America to the western coasts of Europe, the Strait of Gibraltar and Africa. To the north is the Arctic Ocean and, some...
What is an artesian spring or an artesian well
By: Effie Moore Salem
Artesian springs or wells are formed by underground water that is water under pressure and when tapped will emerge to the earth’s surface with more force than would an underground water source without pressure. Although sometimes spoken of as artesian wells, those wells that...
Great Barrier Reef suffering devastating drop in coral
By: Leigh Goessl
A new study conducted by researchers in Australia has determined the country's Great Barrier Reef is suffering a devastating drop in coral. According to researchers, half of the reef has vanished over the past 27 years. Many factors are attributed to the decline of the...
What is it about the Great Lakes that makes them great?
By: Tim Harry
The Great Lakes of North America are world famous, and most people are aware that it is the collective name given to lakes Superior, Michigan, Huron, Erie and Ontario. Fewer people are perhaps aware though as to why the Great Lakes are given the accolade...
The relationship between earthquakes and tsunamis
By: Maryam Idris
If you live near an active fault, chances are that you will experience an earthquake at one point in your life. Although an earthquake is a very frightening event, especially if it is a strong one, the situation is much more terrifying if the earthquake...

 

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