| D009520 |
New Zealand |
A group of islands in the southwest Pacific. Its capital is Wellington. It was discovered by the Dutch explorer Abel Tasman in 1642 and circumnavigated by Cook in 1769. Colonized in 1840 by the New Zealand Company, it became a British crown colony in 1840 until 1907 when colonial status was terminated. New Zealand is a partly anglicized form of the original Dutch name Nieuw Zeeland, new sea land, possibly with reference to the Dutch province of Zeeland. (From Webster's New Geographical Dictionary, 1988, p842 & Room, Brewer's Dictionary of Names, 1992, p378) |
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| D009656 |
North America |
The northern continent of the Western Hemisphere, extending northward from the Colombia-Panama border and including CENTRAL AMERICA, MEXICO, Caribbean area, the UNITED STATES, CANADA and GREENLAND. The term often refers more narrowly to MEXICO, continental UNITED STATES, AND CANADA. |
Northern America |
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| D005060 |
Europe |
The continent north of AFRICA, west of ASIA and east of the ATLANTIC OCEAN. |
Northern Europe,Southern Europe,Western Europe |
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| D000349 |
Africa |
The continent south of EUROPE, east of the ATLANTIC OCEAN and west of the INDIAN OCEAN. |
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| D000397 |
Air Pollution |
The presence of contaminants or pollutant substances in the air (AIR POLLUTANTS) that interfere with human health or welfare, or produce other harmful environmental effects. The substances may include GASES; PARTICULATE MATTER; or volatile ORGANIC CHEMICALS. |
Air Quality,Air Pollutions,Pollution, Air |
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| D001208 |
Asia |
The largest of the continents. It was known to the Romans more specifically as what we know today as Asia Minor. The name comes from at least two possible sources: from the Assyrian asu (to rise) or from the Sanskrit usa (dawn), both with reference to its being the land of the rising sun, i.e., eastern as opposed to Europe, to the west. (From Webster's New Geographical Dictionary, 1988, p82 & Room, Brewer's Dictionary of Names, 1992, p34) |
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| D001315 |
Australia |
The smallest continent and an independent country, comprising six states and two territories. Its capital is Canberra. |
Canton and Enderbury Islands,Christmas Island,Christmas Island (Australia) |
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| D013020 |
South America |
The southern continent of the Western Hemisphere, extending southward from the Colombia-Panama border. |
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