Tuesday, April 29, 2008

Forest

A forest is a region with a high width of trees. There are lots of definitions of a forest, based on a range of criteria. These plant communities cover large areas of the world and function as animal habitats, hydrologic flow modulators, and soil conservers, comprise one of the most main aspects of the Earth's biosphere. Although often thought of as carbon dioxide sinks, grown-up forests are about carbon neutral with only disturbed and young forests acting as carbon sinks. However mature forests do play an significant role in the global carbon cycle as stable carbon pools, and clearance of forests leads to an increase of atmospheric carbon dioxide levels.
Forests can be found in all regions talented of behind tree growth, at altitudes capable of the tree-line, except where natural fire frequency is too high, or where the surroundings has been impair by natural processes or by human activities.

Monday, April 07, 2008

Technology

Technology is a great impression that deals with a species' procedure and information of tools and crafts, and how it affects a group' ability to control and get used to its environment. In human culture, it is a significance of science and engineering, even though numerous technical advances predate the two concepts

Technology has affected society and its surroundings in a number of ways. In several societies, technology has helped increase more advanced economies and has allowed the rise of a spare time class. However, many technological processes make unwanted by-product, recognized as pollution, and lessen natural resources, to the detriment of the Earth and its environment. Different implementations of technology control the values of a society and latest technology raises new moral questions. For Examples contain the rise of the concept of effectiveness in terms of human productivity, a word initially useful only to machines, and the challenge of traditional norms.