By: D. Vogt
On all planets with an atmosphere, but especially the Earth (our usual point of reference), the stratopause is the boundary between the stratosphere and the mesosphere. In our atmosphere, slightly over 30 miles (50 km) above the surface, where the pressure is a tenth of...
By: Elizabeth M Young
Global warming and global cooling are actually two types of climate change. The confusion arises when people confuse weather, which is a specific event, occurring at a specific place and during a specific time with climate. Climate is the activity of the entire earth's atmosphere...
The meaning of desert encroachment
By: Hai Shunxi
To encroach upon something means to advance past its usual or natural limits, so when we pair the words “encroachment” and “desert,” we refer to the spread of a desert into surrounding lands.Though “desert” usually conjures up an image of...
By: Dawn Lioutas
The Tundra biome can be divided into arctic and alpine. As the names suggest, the arctic tundra is located in the northern hemisphere around the North Pole, while the alpine tundra is located at the top of very tall mountains, such as Mount Everest. Year...
The basic concepts and fundamentals of geography
By: Jeremy Ford
The word geography literally means “to study the earth” and this is exactly what it entails-collecting and analyzing data pertaining to the essential workings of the earth and using this data to produce ideas and philosophies related to these workings. It covers a broad...
By: Tim Harry
The cold weather in Britain will see the gritters out on the road, but rather than making use of the traditional grit, gritters now spread rock salt. Rock salt itself is now mined in huge amounts, and such mines are located all around the world...
How a compass works
By: D. Vogt
The invention of the compass was arguably one of the most important milestones in the modern history of exploration and navigation - allowing unprecedentedly simple navigation, in ways that are still used today. Although low-cost GPS devices are beginning to displace traditional compasses, the compass...
Is Space Travel to the Planet Mars too Dangerous
By: Tim White - 240468
I don`t like to come away seeming pessimistic about a manned Mars mission, but I don`t think we`re ready for it in so many ways. What many of us are afraid of is that Mars in general after this will become blaise, just like The...
By: Tim Harry
Most people will have some vague of early geography lessons when they were taught the different types of volcanoes, and the different types of rocks that make up the Earth. At the same time teachers may well have taught the difference between lava and magma...
By: Elizabeth M Young
The ocean is the world's largest aquatic biome, and it consists of zones which describe whether there is light to stimulate plant growth which provided nutrients and carbon/oxygen exchange; whether there is depth that increases the pressure and coldness; and whether there is interface with...

 

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