The most common causes for contamination of an aquifer
By: Elizabeth M Young
An aquifer is an underground body of water that is associated with a formation of permeable rock, sand or gravel that allows water to pass through. Some aquifers are huge, going on for miles, and others are might be tiny collections of water in otherwise...
How cruise liners impact air quality
By: Ben Herd
All vehicles that ply the face of the planet produce some form of pollution, mainly from the exhaust gases which they empty into the atmosphere. Whilst the number of cruise ships plying the world compared to cars, the most common form of transport in the...
By: Elizabeth M Young
Agate is a variation of Chalcedony, which is a variation of silica that is called cryptocristalline. Cryptocrystalline means that the mineral crystals are so fine that they are only vaguely seen in patterns and fine variations. Chalcedony has the crystals quartz and monganite that are...
By: Ben Herd
Everyone knows that iron and steel will go rusty, becoming coated in a reddish orange crust that will, if left for too long, eat away at the metal to the point of weakening the metal severely. Rusting is the corrosion of iron and steel, as...
By: Elizabeth M Young
The amateur geologist, like the professional geologist, is interested in maps, mapping and understanding how to get around with maps as a reference. For every amateur geologist, from the seriousgem or meteroite collector to the interested person who took Geology 101 in college, maps are...
What are flashfloods?
By: Ben Herd
Any form of flood is caused by water running outside of its usual course, such as when a river breaks its banks to overflow onto the surrounding low lying ground, or when an area is inundated as the already saturated ground can’t cope with...
What is supercell lightning?
By: Natasha Wright
There are four different kinds of thunderstorms: squall line, multi-cell, single-cell and supercell. The rarest and usually the most extreme of these four types of storms are supercell storms. Supercell storms are storms that are characterized by a vortex of air known as a mesocyclone...
Worst blizzards in US history
By: Srikanth Radhakrishna
Blizzard is a severe snow storm with wind speed of at least 35 miles per hour (56 kilometers per hour). To state in simpler terms, a blizzard is a combination of low temperature, strong winds and heavy snow. Visibility will be very poor, sometimes even...
Why wind power cannot replace nuclear power
By: Chris Allen - 576713
An almost undeniable fact about energy resources is that fossil fuels won't last forever. Whether or not you believe they affect the environment, alternative sources of power will have to be found and used on a mass scale, to enable us to use electricity long...
Causes of noise pollution
By: Christyl Rivers
Does anyone pay attention to the wail of car alarms anymore? Most of us disregard them. They usually are set off by accident. They go off so often in urban areas, no one even notices anymore. So why do we still have them? The cause...

 

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