মহাদেশ
এক মহাদেশ (ইংৰাজী: Continent)-এ পৃথিৱীৰ সুবৃহৎ ভূখণ্ডসমূহৰ এখনক বুজায়। পৃথিৱীৰ ভূখণ্ডক মহাদেশত ভাগ কৰাৰ কোনো এক নিৰ্দিষ্ট নিয়ম নাই।[1] ইয়াৰ বাবে বিভিন্ন মডেল প্ৰচলিত। সচৰাচৰ সাত মহাদেশ মডেল অনুসৰি মহাদেশকেইখন হৈছে: এছিয়া, আফ্ৰিকা, ইউৰোপ, উত্তৰ আমেৰিকা, দক্ষিণ আমেৰিকা, অষ্ট্ৰেলিয়া আৰু কুমেৰু বা এণ্টাৰ্কটিকা।
বিভিন্ন মহাদেশ মডেলবোৰ
সম্পাদনা কৰকতলত মহাদেশসমূহক ভাগকৰাৰ বিভিন্ন মডেলবোৰক তালিকাভূক্ত কৰা হৈছে:
| মডেল | ||||||||
|---|---|---|---|---|---|---|---|---|
 | ||||||||
| ৭ মহাদেশ [1][2][3][4][5][6] |
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| ৬ মহাদেশ [3][7] |
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| ৬ মহাদেশ[8] | ||||||||
| ৫ মহাদেশ [7][9][10] |
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| ৪ মহাদেশ | ||||||||
ক্ষেত্ৰফল আৰু জনসংখ্যা
সম্পাদনা কৰকঅতিৰিক্ত তথ্য: List of continents by population
The following table summarises the area and population of each continent using the seven continent model, sorted by decreasing area.[11]
| Continent | Area (km²) | Area (mi²) | Percent of total landmass |
Total population | Percent of total population |
Density People per km² |
Density People per mi² |
Most populous city (proper) |
|---|---|---|---|---|---|---|---|---|
| Asia | 4,38,20,000 | 4.382×1013 | 29.5% | 4,164,252,000 | 60% | 95.0 | 246 | Shanghai, China |
| Africa | 3,03,70,000 | 3.037×1013 | 20.4% | 1,022,234,000 | 15% | 33.7 | 87 | Lagos, Nigeria |
| North America | 2,44,90,000 | 2.449×1013 | 16.5% | 542,056,000 | 8% | 22.1 | 57 | Mexico City, Mexico |
| South America | 1,78,40,000 | 1.784×1013 | 12.0% | 392,555,000 | 6% | 22.0 | 57 | São Paulo, Brazil |
| Antarctica | 1,37,20,000 | 1.372×1013 | 9.2% | 0 | 0% | 0 | 0 | Villa Las Estrellas, Chilean claim |
| Europe | 1,01,80,000 | 1.018×1013 | 6.8% | 738,199,000 | 11% | 72.5 | 188 | Moscow, Russia[12] |
| Australia | 90,08,500 | 9.0085×1012 | 5.9% | 29,127,000 | 0.4% | 3.2 | 8.3 | Sydney, Australia |
The total land area of all continents is ১৪,৮৬,৪৭,০০০ বৰ্গ কি.মি. (1.48647×1014 বৰ্গ মিটাৰ), or 29.1% of earth's surface (51,00,65,600 বৰ্গ কি.মি.s / 5.100656×1014 square metres).
A rough estimate of the total population of all the continents is 7,000,000,000.
তথ্যসূত্ৰ
সম্পাদনা কৰক- ↑ 1.0 1.1 "Continents: What is a Continent?". National Geographic. http://travel.nationalgeographic.com/places/continents/। আহৰণ কৰা হৈছে: 2009-08-22."Most people recognize seven continents—Asia, Africa, North America, South America, Antarctica, Europe, and Australia, from largest to smallest—although sometimes Europe and Asia are considered a single continent, Eurasia."
- ↑ The World - Continents Archived 2006-02-21 at the Wayback Machine, Atlas of Canada
- ↑ 3.0 3.1 "Continent". Encyclopædia Britannica. 2006. Chicago: Encyclopædia Britannica, Inc.
- ↑ The New Oxford Dictionary of English. 2001. New York: Oxford University Press.
- ↑ "Continent Archived 2009-10-28 at the Wayback Machine". MSN Encarta Online Encyclopedia 2006.. 2009-10-31.
- ↑ "Continent". McArthur, Tom, ed. 1992. The Oxford Companion to the English Language. New York: Oxford University Press; p. 260.
- ↑ 7.0 7.1 "Continent". The Columbia Encyclopedia. 2001. New York: Columbia University Press - Bartleby.
- ↑ [1] official Greek Paedagogical Institute 6th grade Geography textbook, 5+1 continents combined-America model, Pankosmios Enyklopaidikos Atlas, CIL Hellas Publications, ISBN 84-407-0470-4, page 30, 5+1 combined-America continents model, Neos Eikonographemenos Geographikos Atlas, Siola-Alexiou, 6 continents combined-America model, Lexico tes Hellenikes Glossas, Papyros Publications, ISBN 978-960-6715-47-1, lemma continent(epeiros), 5 continents model,[2] Lexico Triantaphyllide online dictionary , Greek Language Center (Kentro Hellenikes Glossas), lemma continent(epeiros), 6 continents combined-America model, Lexico tes Neas Hellenikes Glossas, G.Babiniotes, Kentro Lexikologias(Legicology Center) LTD Publications , ISBN 960-86190-1-7, lemma continent(epeiros), 6 continents combined-America model.Note and clarification on the above: the sometimes used in Greece 5 and 5+1 continents models mentioned above are equivalent to the 6 (inhabited) continents combined-America model excluding/including (separately mentioning) the uninhabited and once lesser-known or unknown Antarctica (just like the Olympic Circles-Logo); they don't refer to some other 5 or other number continent modeling scheme.
- ↑ Océano Uno, Diccionario Enciclopédico y Atlas Mundial, "Continente", page 392, 1730. ISBN 84-494-0188-7
- ↑ Los Cinco Continentes (The Five Continents), Planeta-De Agostini Editions, 1997. ISBN 84-395-6054-0
- ↑ "Total Population – Both Sexes". World Population Prospects, the 2010 Revision. United Nations Department of Economic and Social Affairs. 28 June 2011. Retrieved 24 October 2011. (Per linked individual article definitions, North America includes UN population estimates for North America, Central America and Caribbean; Australia includes Australia and Papua New Guinea.)
- ↑ "Forbes проигнорировал Москву". www.irn.ru. http://www.irn.ru/articles/14426.html.