A continent is any of several large geographical regions. Continents are generally identified by convention rather than any strict criteria. A continent could be a single landmass or a part of a very large landmass, as in the case of Asia or Europe. Due to this, the number of continents varies; up to seven or as few as four geographical regions are commonly regarded as continents. Most English-speaking countries recognize seven regions as continents. In order from largest to smallest in area, these seven regions are Asia, Africa, North America, South America, Antarctica, Europe, and Australia.[1] Different variations with fewer continents merge some of these regions; examples of this are merging North America and South America into America, Asia and Europe into Eurasia, and Africa, Asia, and Europe into Afro-Eurasia.
WContinents 7 Continents
7 continents
The seven-continent model is probably the most widely taught. There are however other ways of grouping countries into continents.
List of the seven continents
Ranked by current population
# Continent Population
(2024) Area
(Km²) Density
(P/Km²) World Population
Share
1 Asia 4,806,898,006 31,033,131 155 58.89%
2 Africa 1,515,140,850 29,648,481 51 18.56%
3 Europe 743,230,911 22,134,710 34 9.11%
4 North America 613,149,877 21,330,000 29 7.51%
5 South America 435,611,301 17,461,112 25 5.34%
6 Australia/Oceania 46,502,478 8,486,460 5 0.57%
7 Antarctica 0 13,720,000 0 0.00%
Which continent does Russia belong to?
Russia is part of both Europe and Asia. In the 7 continent model in fact, it is not always clear where to place Russia. In the map pictured above Russia is divided into two parts (European Russia and the "Asian part" of the Russian Federation) along the Ural Mountains line, from the source of the Ural River down to the Greater Caucasus from the Caspian Sea to the Black Sea (following the modern definition of Europe as provided by the National Geographic Society). However, in the list of continents, we had to place Russia in one continent or the other, so we placed it in Europe, following the United Nations classification.
About 75% of the Russian population lives in the European continent. On the other hand, 75% of Russian territory is located in Asia.
Which continent does Hawaii belong to?
None. Hawaii is politically part of North America, but geographically it is not part of any continent.
Asia (/ˈeɪʒə/ ⓘ AY-zhə, UK also /ˈeɪʃə/ AY-shə) is the largest continent[note 1][10][11] in the world by both land area and population.[11] It covers an area of more than 44 million square kilometres,[note 2] about 30% of Earth's total land area and 8% of Earth's total surface area. The continent, which has long been home to the majority of the human population,[12] was the site of many of the first civilisations. Its 4.7 billion people[13] constitute roughly 60% of the world's population.[14]
Asia
# Country Population
(2024) Land Area
(Km²) Density
(P/Km²)
1 India 1,450,935,791 2,973,190 488
2 China 1,419,321,278 9,388,211 151
3 Indonesia 283,487,931 1,811,570 156
4 Pakistan 251,269,164 770,880 326
5 Bangladesh 173,562,364 130,170 1,333
6 Japan 123,753,041 364,555 339
7 Philippines 115,843,670 298,170 389
8 Vietnam 100,987,686 310,070 326
9 Iran 91,567,738 1,628,550 56
10 Turkey 87,473,805 769,630 114
11 Thailand 71,668,011 510,890 140
12 Myanmar 54,500,091 653,290 83
13 South Korea 51,717,590 97,230 532
14 Iraq 46,042,015 434,320 106
15 Afghanistan 42,647,492 652,860 65
16 Yemen 40,583,164 527,970 77
17 Uzbekistan 36,361,859 425,400 85
18 Malaysia 35,557,673 328,550 108
19 Saudi Arabia 33,962,757 2,149,690 16
20 Nepal 29,651,054 143,350 207
21 North Korea 26,498,823 120,410 220
22 Syria 24,672,760 183,630 134
23 Taiwan 23,213,962 35,410 656
24 Sri Lanka 23,103,565 62,710 368
25 Kazakhstan 20,592,571 2,699,700 8
26 Cambodia 17,638,801 176,520 100
27 Jordan 11,552,876 88,780 130
28 United Arab Emirates 11,027,129 83,600 132
29 Tajikistan 10,590,927 139,960 76
30 Azerbaijan 10,336,577 82,658 125
31 Israel 9,387,021 21,640 434
32 Laos 7,769,819 230,800 34
33 Turkmenistan 7,494,498 469,930 16
34 Hong Kong 7,414,909 1,050 7,062
35 Kyrgyzstan 7,186,009 191,800 37
36 Singapore 5,832,387 700 8,332
37 Lebanon 5,805,962 10,230 568
38 State of Palestine 5,495,443 6,020 913
39 Oman 5,281,538 309,500 17
40 Kuwait 4,934,507 17,820 277
41 Georgia 3,807,670 69,490 55
42 Mongolia 3,475,540 1,553,560 2
43 Qatar 3,048,423 11,610 263
44 Armenia 2,973,840 28,470 104
45 Bahrain 1,607,049 760 2,115
46 Timor-Leste 1,400,638 14,870 94
47 Cyprus 1,358,282 9,240 147
48 Bhutan 791,524 38,117 21
49 Macao 720,262 30 24,009
50 Maldives 527,799 300 1,759
51 Brunei Darussalam 462,721 5,270 88
Africa is the world's second-largest and second-most populous continent after Asia. At about 30.3 million km2 (11.7 million square miles) including adjacent islands, it covers 20% of Earth's land area and 6% of its total surface area.[9] With nearly 1.4 billion people as of 2021, it accounts for about 18% of the world's human population. Africa's population is the youngest among all the continents;[10][11] the median age in 2012 was 19.7, when the worldwide median age was 30.4.[12] Based on 2024 projections, Africa's population will reach 3.8 billion people by 2099.[13] Africa is the least wealthy inhabited continent per capita and second-least wealthy by total wealth, ahead of Oceania. Scholars have attributed this to different factors including geography, climate,[14] corruption,[14] colonialism, the Cold War,[15][16] and neocolonialism. Despite this low concentration of wealth, recent economic expansion and a large and young population make Africa an important economic market in the broader global context. Africa has a large quantity of natural resources and food resources, including diamonds, sugar, salt, gold, iron, cobalt, uranium, copper, bauxite, silver, petroleum, natural gas, cocoa beans, and tropical fruit.
Africa
# Country Population
(2024) Land Area
(Km²) Density
(P/Km²)
1 Nigeria 232,679,478 910,770 255
2 Ethiopia 132,059,767 1,000,000 132
3 Egypt 116,538,258 995,450 1174 Democratic Republic of the Congo 109,276,265 2,267,050 48
5 Tanzania 68,560,157 885,800 77
6 South Africa 64,007,187 1,213,090 53
7 Kenya 56,432,944 569,140 99
8 Sudan 50,448,963 1,765,048 29
9 Uganda 50,015,092 199,810 250
10 Algeria 46,814,308 2,381,740 20
11 Morocco 38,081,173 446,300 85
12 Angola 37,885,849 1,246,700 30
13 Mozambique 34,631,766 786,380 44
14 Ghana 34,427,414 227,540 151
15 Madagascar 31,964,956 581,795 55
16 Côte d'Ivoire 31,934,230 318,000 100
17 Cameroon 29,123,744 472,710 62
18 Niger 27,032,412 1,266,700 21
19 Mali 24,478,595 1,220,190 20
20 Burkina Faso 23,548,781 273,600 86
21 Malawi 21,655,286 94,280 230
22 Zambia 21,314,956 743,390 29
23 Chad 20,299,123 1,259,200 16
24 Somalia 19,009,151 627,340 30
25 Senegal 18,501,984 192,530 96
26 Zimbabwe 16,634,373 386,850 43
27 Guinea 14,754,785 245,720 60
28 Benin 14,462,724 112,760 128
29 Rwanda 14,256,567 24,670 578
30 Burundi 14,047,786 25,680 547
31 Tunisia 12,277,109 155,360 79
32 South Sudan 11,943,408 610,952 20
33 Togo 9,515,236 54,390 175
34 Sierra Leone 8,642,022 72,180 120
35 Libya 7,381,023 1,759,540 4
36 Congo 6,332,961 341,500 19
37 Liberia 5,612,817 96,320 58
38 Central African Republic 5,330,690 622,980 9
39 Mauritania 5,169,395 1,030,700 5
40 Eritrea 3,535,603 101,000 35
41 Namibia 3,030,131 823,290 4
42 Gambia 2,759,988 10,120 273
43 Gabon 2,538,952 257,670 10
44 Botswana 2,521,139 566,730 4
45 Lesotho 2,337,423 30,360 77
46 Guinea-Bissau 2,201,352 28,120 78
47 Equatorial Guinea 1,892,516 28,050 67
48 Mauritius 1,271,169 2,030 626
49 Eswatini 1,242,822 17,200 72
50 Djibouti 1,168,722 23,180 50
51 Réunion 878,591 2,500 351
52 Comoros 866,628 1,861 466
53 Western Sahara 590,506 266,000 2
54 Cabo Verde 524,877 4,030 130
55 Mayotte 326,505 375 871
56 Sao Tome and Principe 235,536 960 245
57 Seychelles 130,418 460 284
58 Saint Helena 5,237 390 13
North America is a continent[b] in the Northern and Western Hemispheres.[c] North America is bordered to the north by the Arctic Ocean, to the east by the Atlantic Ocean, to the southeast by South America and the Caribbean Sea, and to the west and south by the Pacific Ocean. The region includes the Bahamas, Bermuda, Canada, the Caribbean, Central America, Clipperton Island, Greenland, Mexico, Saint Pierre and Miquelon, the Turks and Caicos Islands, and the United States.
North America
# Country Population
(2024) Land Area
(Km²) Density
(P/Km²)
1 U.S.A. 345,426,571 9,147,420 38
2 Mexico 130,861,007 1,943,950 67
3 Canada 39,742,430 9,093,510 4
4 Guatemala 18,406,359 107,160 172
5 Haiti 11,772,557 27,560 427
6 Dominican Republic 11,427,557 48,320 236
7 Cuba 10,979,783 106,440 103
8 Honduras 10,825,703 111,890 97
9 Nicaragua 6,916,140 120,340 57
10 El Salvador 6,338,193 20,720 306
11 Costa Rica 5,129,910 51,060 100
12 Panama 4,515,577 74,340 61
13 Puerto Rico 3,242,204 8,870 366
14 Jamaica 2,839,175 10,830 262
15 Trinidad and Tobago 1,507,782 5,130 294
16 Belize 417,072 22,810 18
17 Bahamas 401,283 10,010 40
18 Guadeloupe 375,106 1,690 222
19 Martinique 343,195 1,060 324
20 Barbados 282,467 430 657
21 Curaçao 185,482 444 418
22 Saint Lucia 179,744 610 295
23 Grenada 117,207 340 345
24 Aruba 108,066 180 600
25 Saint Vincent and the Grenadines 100,616 390 258
26 Antigua and Barbuda 93,772 440 213
27 United States Virgin Islands 84,905 350 243
28 Cayman Islands 74,457 240 310
29 Dominica 66,205 750 88
30 Bermuda 64,636 50 1,293
31 Greenland 55,840 410,450 0
32 Saint Kitts and Nevis 46,843 260 180
33 Turks and Caicos Islands 46,535 950 49
34 Sint Maarten 43,350 34 1,275
35 British Virgin Islands 39,471 150 263
36 Caribbean Netherlands 30,675 328 94
37 Saint Martin 26,129 53 493
38 Anguilla 14,598 90 162
39 Saint Barthélemy 11,258 21 536
40 Saint Pierre and Miquelon 5,628 230 24
41 Montserrat 4,389 100 44
South America is a continent[g] entirely in the Western Hemisphere[h] and mostly in the Southern Hemisphere, with a considerably smaller portion in the Northern Hemisphere. It can also be described as the southern subregion of the Americas.
South America
# Country Population
(2024) Land Area
(Km²) Density
(P/Km²)
1 Brazil 211,998,573 8,358,140 25
2 Colombia 52,886,363 1,109,500 48
3 Argentina 45,696,159 2,736,690 17
4 Peru 34,217,848 1,280,000 27
5 Venezuela 28,405,543 882,050 32
6 Chile 19,764,771 743,532 27
7 Ecuador 18,135,478 248,360 73
8 Bolivia 12,413,315 1,083,300 11
9 Paraguay 6,929,153 397,300 17
10 Uruguay 3,386,588 175,020 19
11 Guyana 831,087 196,850 4
12 Suriname 634,431 156,000 4
13 French Guiana 308,522 82,200 4
14 Falkland Islands 3,470 12,170 0
The continent of Australia, sometimes known in technical contexts by the names Sahul (/səˈhuːl/), Australia-New Guinea, Australinea, or Meganesia to distinguish it from the country of Australia,[1][2][3] is located within the Southern and Eastern hemispheres.[4] The continent includes mainland Australia, Tasmania, the island of New Guinea (Papua New Guinea and Western New Guinea), the Aru Islands, the Ashmore and Cartier Islands, most of the Coral Sea Islands, and some other nearby islands. Situated in the geographical region of Oceania, Australia is the smallest of the seven traditional continents.
Australia/Oceania
# Country Population
(2024) Land Area
(Km²) Density
(P/Km²)
1 Australia 26,713,205 7,682,300 3
2 Papua New Guinea 10,576,502 452,860 23
3 New Zealand 5,213,944 263,310 20
4 Fiji 928,784 18,270 51
5 Solomon Islands 819,198 27,990 29
6 Micronesia 526,923 700 753
7 Vanuatu 327,777 12,190 27
8 New Caledonia 292,639 18,280 16
9 French Polynesia 281,807 3,660 77
10 Samoa 218,019 2,830 77
11 Guam 167,777 540 311
12 Kiribati 134,518 810 166
13 Tonga 104,175 720 145
14 American Samoa 46,765 200 234
15 Northern Mariana Islands 44,278 460 96
16 Marshall Islands 37,548 180 209
17 Palau 17,695 460 38
18 Cook Islands 13,729 240 57
19 Nauru 11,947 20 597
20 Wallis and Futuna Islands 11,277 140 81
21 Tuvalu 9,646 30 322
22 Tokelau 2,506 10 251
23 Niue 1,819 260 7
Antarctica (/ænˈtɑːrktɪkə/ ⓘ)[note 1] is Earth's southernmost and least-populated continent. Situated almost entirely south of the Antarctic Circle and surrounded by the Southern Ocean (also known as the Antarctic Ocean), it contains the geographic South Pole. Antarctica is the fifth-largest continent, being about 40% larger than Europe, and has an area of 14,200,000 km2 (5,500,000 sq mi). Most of Antarctica is covered by the Antarctic ice sheet, with an average thickness of 1.9 km (1.2 mi).
Respiratory viral diseases are infectious. It generally infects the upper and lower parts of a person's respiratory tract.
Examples of respiratory diseases are:
Flu
Respiratory syncytial virus infection
Common cold
Parainfluenza virus infection
Adenovirus infection
SARS (severe acute respiratory syndrome)
Clinical Manifestation:
Runny or stuffy nose
Fever
Coughing or sneezing
Body aches
Transmission:
Respiratory viruses are transmitted via droplet infection (coughing or sneezing). A person may catch the infection if any person with viral infection sneezes or coughs near them, and unknowingly they inhale these droplets. Contaminated Objects, like tabletops, doorknobs, and one's own daily use items, can also transmit viruses if we use them and then touch our eyes or nose.
Treatment
These types of viral diseases cure on their own. But OTC (over-the-counter) drugs such as decongestants, antitussives, and analgesics help to lessen the symptoms.
Additionally, Tamiflu is an antiviral medicine that is recommended for a person suffering from the flu.
Precautions:
Maintaining good personal hygiene is the best way to prevent respiratory viral diseases
Wash hands frequently and cover your mouth while you're coughing or sneezing
To avoid interactions with the person showing symptoms of respiratory diseases
Hemorrhagic viral diseases are serious conditions where a person's circulatory system is damaged.
Examples of hemorrhagic viral diseases are:
Dengue fever
Marburg hemorrhagic fever
Yellow fever
Ebola
Crimean- Congo hemorrhagic fever
Lassa fever
Clinical Manifestation:
Weakness
High fever
Bleeding in internal organs
Bleeding under the skin
Body aches
Bleeding from the mouth or ears
Transmission:
Diseases like dengue and yellow fever are transmitted from a bite of infected insects, whereas diseases like Ebola are spread to a person when he comes in contact with the blood and body fluid of an infected person. Dried feces and urine of a rodent containing viruses cause Lassa fever when inhaled or consumed by someone unknowingly.
Treatment:
However, there is no exact regimen and cure for hemorrhagic viral diseases.
Keeping the body hydrated is very important for a person suffering from these infections, and sometimes IV (intravenous) fluids are recommended to a patient for maintaining fluid-electrolyte balance. In some cases, ribavarin, an antiviral drug, is prescribed.
Precautions:
People living or working in an area where these diseases are common can adopt the following preventions to decrease the risk:
Always wear protective clothing and use insect repellent. Try not to get bitten by insects such as ticks and mosquitoes
Protect yourself from viral infection while being in contact with an infected person by wearing proper protection like a face shield, gloves, and glasses.
Keep food covered, dispose garbage regularly, and keep doors and windows secure to prevent rodent infestation.
Researchers are continuously working to develop vaccines for various hemorrhagic viruses. Recently, the vaccine for yellow fever has been provided to people moving or visiting areas where this disease is common.
These diseases affect your digestive tract, and the viruses responsible for the infection are contagious and commonly lead to a condition known as gastroenteritis (stomach flu).
Examples of gastrointestinal viral diseases are:
Rotavirus infection
Astrovirus infection
Norovirus infection
Some adenovirus infection
Clinical Manifestation:
Nausea and vomiting
Diarrhea
Abdominal cramps
Transmission
During the bowel movement, gastrointestinal viruses are shed in the fecal matter. Food or water polluted by stool can transmit the viruses to other people. If a person shares utensils or personal items with anyone with a viral infection can also get caught by the virus.
Treatment
There is no treatment for gastrointestinal viral infection as, in various cases, they heal on their own in 2 -3 days only. A person should drink plenty of fluids to restore the loss that occurred due to vomiting and Diarrhea.
Prevention
These infections can be prevented by proper handwashing, especially after using the bathroom.
Wipe down the contaminated areas and avoid sharing personal items and utensils.
A vaccine for rotavirus is available and mentioned in the child's immunization schedule.
