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- Ecosystem (2598 bytes)
1: ...nity''' or '''[[biocoenosis]]''') living together with their [[environment]] (or '''[[biotope]]'''), ...
3: ...1939). Modern usage of the term derives from the work of [[Raymond Lindeman]] in his classic study o...
5: ... a self-standing unit with coherent and stable flows only to be a bit restrictive.
7: ... ecosystem, or a lake can be divided into several ecosystems, depending on the used scale.
9: ...robustness and capacity for recovery of a natural ecosystem.
Page text matches
- Earth (30908 bytes)
4: ...in here. It's been done to death. Find a gem with which to improve the article and you'll shine forev...
7: ...e Earth''' or '''Terra''', is the third planet outward from the [[Sun]]. It is the largest of the [[s...
14: ... sea level). Thus the Earth is an oblate spheroid within a [[tolerance (engineering)|tolerance]] of o...
17: ...inner core. The liquid outer core gives rise to a weak [[magnetosphere|magnetic field]] due to the co...
19: ... old [http://spaceflightnow.com/news/n0101/14earthwater/]. - Aswan Dam (6375 bytes)
1: ...Image:Lake_Nasser.jpg|right|thumb|220px|Aerial view of Lake Nasser, courtesy of [http://classroomclip...
2: [[Aswan]] is a city on the first [[cataract]] of the [[...
3: ...m''', and the older '''Aswan Dam''' or '''Aswan Low Dam'''.
5: ...ly wiped out, while in a low-water year there was widespread drought and famine.
10: ...adequate and the height of the dam was raised in two phases, 1907–1912 and 1929–1933. - California (63989 bytes)
12: Governor = [[Arnold Schwarzenegger]] (R)|
20: WaterArea = 20,047 |
21: PCWater = 4.7 |
34: Longitude = 114°8'W to 124°24'W |
35: Width = 402.5 | - Dinosaur (35313 bytes)
7: ...br>{{Taxobox_authority | author = [[Richard Owen|Owen]] | date = [[1842]]}}
16: ...ing blood vessels and cells lining them [http://www.nytimes.com/2005/06/03/science/03dinosaur.html]".
18: ..., like the [[pelycosaur]] ''[[Dimetrodon]]'', the winged [[pterosaur]]s, and the aquatic [[ichthyosau...
20: ...ation|classifying]] dinosaurs, which are still known from a spotty [[fossil record]].
22: ==What is a dinosaur?== - Ecosystem (2598 bytes)
1: ...nity''' or '''[[biocoenosis]]''') living together with their [[environment]] (or '''[[biotope]]'''), ...
3: ...1939). Modern usage of the term derives from the work of [[Raymond Lindeman]] in his classic study o...
5: ... a self-standing unit with coherent and stable flows only to be a bit restrictive.
7: ... ecosystem, or a lake can be divided into several ecosystems, depending on the used scale.
9: ...robustness and capacity for recovery of a natural ecosystem. - History of science (41710 bytes)
2: ...] and their pre-cursors back in [[time]], all the way into human [[prehistory]].
4: ...many place ancient [[natural philosophy]] clearly within the scope of the history of science.
6: ... philosophy also enquires about other areas of knowledge, notably [[ethics]]. In practice, each of th...
11: ... scientific knowledge, and to de-emphasize the view that scientific data is self-evident, value-free,...
13: ... can be [[demarcation problem|no demarcation]] between science and any other form of investigation. - Agriculture (19147 bytes)
3: ...ce of agriculture is also known as '''farming''', while scientists, inventors and others devoted to i...
5: ...her, yet it only accounts for four percent of the world's [[gross domestic product|GDP]].<!--Source?-...
7: == Overview ==
11: ...developed" nations and increasingly so elsewhere, which consists of obtaining financial income from t...
13: ...he practice of agriculture—more formally known as [[agricultural science]]. - Erosion (6998 bytes)
2: ...b|225px|Severe soil erosion in a wheat field near Washington State University, USA.]]
4: ..., [[overgrazing]] and road or trail building. Likewise, humans have sought to limit erosion by [[terr...
6: ...educing [[Soil degradation|soil fertility]] and [[water quality]].
9: ... erosion to be severe in some areas and minor elsewhere? It is a combination of many factors, includi...
11: ...s, and steep slopes to be the most erosive. Soils with a lot of [[clay]] that receive less intense pr... - Evolution (27661 bytes)
1: ...Image:Charles Darwin.jpg|right|frame|[[Charles Darwin]], father of the theory of evolution by [[natur...
3: ...]s over generations, including the emergence of new [[species]]. Since the development of modern [[ge...
6: ...t]] or changes in population structure ([[gene flow]]).
8: ... is often used to describe the mechanisms through which evolution acts to change populations over tim...
16: ... The mechanisms that cause some traits to persist while others perish. - History of California (38344 bytes)
3: ...t of the known '''history of California''' begins with European exploration.
5: ...ural lands and prodigious oil fields, and finally with its high-technology leadership.
10: [[Image:Tunnel view.jpg|thumb|300px|California's [[Yosemite Valley]]....
11: ...ly inhabitation, dated to the last [[ice age]] ([[Wisconsin glaciation]]) about 13,000 years ago.
13: ...Cascade Range]] traded [[obsidian]], used for arrowheads, axe heads, and knives. Tribes in the [[Sie... - Economics (30960 bytes)
1: ...s or a set of [[observation]]s, and [[normative]] when it prescribes that a certain action should be ...
3: ...]]''', which considers the economy as a whole, in which case it considers [[aggregate supply]] and [[...
5: ...ions or events, it also analyses the behaviour of whole societies. (See also [[sociology]], [[politic...
7: ...economics focused on the satisfaction of material wants and this remains the focus of economics. As ...
9: ...go.jpg|thumb|250px|Buyers bargain for good prices while sellers put forth their best front in [[Chich... - Oceanography (3841 bytes)
1: ...sical]] processes. There are five major divisions within the science: Oceanography's definition is si...
3: ...biological oceanography''' or [[marine biology]], which is the study of the [[biota]] of the oceans a...
4: *'''[[chemical oceanography]]''', which is the study of the chemistry of the ocean;
5: *'''geological oceanography''', which is [[marine geology]], including [[plate tect...
6: ...ogic oceanography]]''', which is concerned with how the atmosphere and the ocean interact in the [[hy... - Extinction (15793 bytes)
2: ...r competition. A typical species becomes extinct within 10 million years of its first appearance, al...
4: ...s on. In other cases, species have produced no new variants, or none that are able to survive the pa...
6: ...t ''[[Eohippus]]'' (an ancient horse-like animal) was the [[ancestry|ancestor]] of several extant spe...
8: ...ry date selected to define "modern" extinctions), with many more likely to have gone unnoticed. Most...
10: Species which are not extinct are termed ''extant''. - Wildebeest (2915 bytes)
1: {{Taxobox_begin | color = pink | name = '''Wildebeest''' }}<br />{{StatusConcern}}
2: ...-gnu.jpg|260px|Blue Wildebeest]] | caption = Blue Wildebeest}}
16: ...''). The gnus belongs to the family [[Bovidae]], which includes antelopes, cattle, goats, and other ...
18: ...[southern Africa]], especially the [[Serengeti]]. Wildebeest can live for more than 20 years.
20: ...he woods; they return in November as summer rains water the plains. - Yellowstone National Park (23738 bytes)
1: ..."1" cellpadding="2" cellspacing="0" align="right" width="280px">
3: <font size="+1">'''Yellowstone'''</font></td></tr>
5: [[image:LocMap_Yellowstone.png]]</td></tr>
9: <td>[[Idaho]], [[Wyoming]] and [[Montana]]</td></tr>
13: <td>{{coor dm|44|40|N|110|28|W|}}</td></tr> - Great Barrier Reef (3888 bytes)
3: The '''Great Barrier Reef''' is the world's largest [[coral reef]]. The reef is located...
5: ...t European explorer to see the Great Barrier Reef was [[Captain James Cook]] during his [[1768]] voya...
7: Due to its vast biodiversity, warm clear waters and its accessibility from the floating gues...
9: ...gle largest living [[animal|animal being]] in the world. In reality it is many colonies of [[coral]]s...
14: ...s, the largest being less than 150,000 people. By world standards the Reef is under only light enviro... - Temperate coniferous forests (2732 bytes)
1: ...ood]] and [[yew]]. The understory also contains a wide variety of herbaceous and shrub species.
3: ..., and are often subject to ecologically important wildfires.
5: ...forests of [[New Zealand]] and [[Tasmania]], northwest [[Europe]] (small pockets in [[Ireland]], [[Sc...
7: ... [[California]] and southwestern [[Oregon]] is known for its rich variety of plant and animal species... - Wildlife (4144 bytes)
2: ... [[urban]] sites—all have distinct forms of wildlife.
4: ... [[activists]] to [[protest]] the exploitation of wildlife for human benefit or entertainment.
6: ...made use of the traditional human separation from wildlife.
8: ==Wildlife as food==
9: ... that is not traditionally regarded as game is known as [[bushmeat]]. - Wolf (22358 bytes)
1: {{Taxobox_begin | color = pink | name = Grey Wolf}}<br>{{StatusConcern}}
2: ...box_image | image = [[Image:Wolf_1.jpg|230px|Gray Wolf]] | caption =}}
15: ...[tourism]]/[[industry]], [[city]]/[[country]], as well as [[conservation]]/[[exploitation]].
17: ... Wolves are still endangered after being hunted down in the 1600s.
19: ...], the [[Ethiopian Wolf]], and the extinct [[Dire Wolf]]. - Global warming (53726 bytes)
3: ...n dioxide]] (CO<sub>2</sub>). The alternative view, that the principal causes are natural cycles suc...
5: ...over the next one hundred years due to the lag in warming caused by the oceans.
7: ...effects by causing [[flood]]s, [[drought]]s, heat waves, reduction of [[agricultural]] yields or in e...
11: ...used change [http://www.grida.no/climate/ipcc_tar/wg1/518.htm]. Sometimes the term "anthropogenic cl...
16: ...ed Kingdom]] and the [[United States]] [http://www.royalsoc.ac.uk/displaypagedoc.asp?id=13057].
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