By: John Welford
Glaciers change the landscape in two ways, namely by what they take away and what they leave behind. These processes are termed glacial erosion and glacial deposition. Although the term “glaciation” includes a range of processes such as the formation of ice sheets and...
By: Dyana Hepburn
A moraine can be any of several types of earth formations, gently rolling hills, high ridges, deep valleys and lakes, are some of the forms they take. A moraine is caused by a glacier's movement across the land. Think of a glacier as a river...
By: Christyl Rivers
Glaciers are the cold and artistic architects of the lay of many lands. Most hills and valleys are carved by glaciers in the cooler regions of earth, and often the scenery includes lakes, peaks, rich soils in river valleys and more. A glacier is a...
What determines how explosive a volcanic eruption will be
By: Rex Trulove
Volcanoes have been producing new land mass for millions of years. However, they can also be extremely destructive. It isn't unusual for people to wonder what determines how explosive a volcanic eruption will be. There is an answer to the question, which lies in the...
What causes a geyser
By: Rex Trulove
A geyser is a vent in rock that periodically puts forth a blast of super-heated water and steam. It is likely that most people already know this. However, the cause of the jet of hot water that makes up a geyser eruption may be a...
By: Blaise Pascal
Coal is a fossil fuel that has been used for several hundred years. Most people have heard of coal and know that the Earths coal supplies are limited but they may not know how coal was formed. There are some mistaken beliefs that coal comes...
By: Sarah Cagle
Anthracite and bituminous coal are two types of coal that are critical to the economy of the United States. Anthracite coal is used in a variety of manufacturing processes, but its primary use is in the formation of steel. Bituminous coal, on the other...
By: Elizabeth M Young
Oil Shale deposits are all over the world. These deposits were formed during the prehistoric periods of the Triassic, Jurassic, Permian, Devonian, Pre Cambrian, Cretaceous, Early Carboniferous, and Ordovician periods, which means that these deposits are very, very old. This is different from Oil Bearing...
By: Blaise Pascal
Oil is one of the most versatile fossil fuels. Many products that people use everyday stem from petroleum. While most people know that that crude oiled is drilled for and pumped from conventional wells, not all oil comes from a well. Oil shale is a...
By: Alan Parker
Geysers are some of the most awe-inspiring and rare natural phenomena in the world today. Officially, a geyser is a spring that is characterized by discharges of water and steam which are ejected forcefully. The word “geyser” actually comes from the Icelandic verb &ldquo...

 

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