Earth is the third planet from the Sun and the only astronomical object known to harbor and support life. About 29.2% of Earth's surface is land consisting of continents and islands. The remaining 70.8% is covered with water, mostly by oceans, seas, gulfs, and other salt-water bodies, but also by lakes, rivers, and other freshwater, which together constitute the hydrosphere. Much of Earth's polar regions are covered in ice. Earth's outer layer is divided into several rigid tectonic plates that migrate across the surface over many millions of years, while its interior remains active with a solid iron inner core, a liquid outer core that generates Earth's magnetic field, and a convective mantle that drives plate tectonics.
Earth's atmosphere consists mostly of nitrogen and oxygen. More solar energy is received by tropical regions than polar regions and is redistributed by atmospheric and ocean circulation. Greenhouse gases also play an important role in regulating the surface temperature. A region's climate is not only determined by latitude, but also by elevation and proximity to moderating oceans, among other factors. Severe weather, such as tropical cyclones, thunderstorms, and heatwaves, occurs in most areas and greatly impacts life.

Earth

Manatees (family Trichechidae, genus Trichechus) are large, fully aquatic, mostly herbivorous marine mammals sometimes known as sea cows. There are three accepted living species of Trichechidae, representing three of the four living species in the order Sirenia: the Amazonian manatee (Trichechus inunguis), the West Indian manatee (Trichechus manatus), and the West African manatee (Trichechus senegalensis). They measure up to 4.0 metres (13 ft 1 in) long, weigh as much as 590 kilograms (1,300 lb), and have paddle-like flippers.
Manatees are herbivores and eat over 60 different freshwater and saltwater plants. Manatees inhabit the shallow, marshy coastal areas and rivers of the Caribbean Sea, the Gulf of Mexico, the Amazon basin, and West Africa.
The main causes of death for manatees are human-related issues, such as habitat destruction and human objects. Their slow-moving, curious nature has led to violent collisions with propeller-driven boats and ships. Some manatees have been found with over 50 scars on them from propeller blades. Natural causes of death include adverse temperatures, predation by crocodiles on young, and disease.


== Etymology ==
The etymology of the name is unclear, with connections having been made to Latin manus (‘hand’), and to a word – sometimes cited as manati – used by the Taíno, a pre-Columbian people of the Caribbean, meaning "breast".

Manatee

The capybara (Hydrochoerus hydrochaeris) is a giant cavy rodent native to South America. It is the largest living rodent. Also called capivara (in Brazil), capiguara (in Bolivia), chigüire, chigüiro, or fercho (in Colombia and Venezuela), carpincho (in Argentina, Paraguay and Uruguay) and ronsoco (in Peru), it is a member of the genus Hydrochoerus, of which the only other extant member is the lesser capybara (Hydrochoerus isthmius). Its close relatives include guinea pigs and rock cavies, and it is more distantly related to the agouti, the chinchilla, and the coypu. The capybara inhabits savannas and dense forests and lives near bodies of water. It is a highly social species and can be found in groups as large as 100 individuals, but usually lives in groups of 10–20 individuals. The capybara is not a threatened species and it is hunted for its meat and hide and also for grease from its thick fatty skin.


== Etymology ==
Its common name is derived from Tupi ka'apiûara, a complex agglutination of kaá (leaf) + píi (slender) + ú (eat) + ara (a suffix for agent nouns), meaning "one who eats slender leaves", or "grass-eater".The scientific name, both hydrochoerus and hydrochaeris, comes from Greek ὕδρω (hydro "water") and χοῖρος (choiros "pig, hog").


== Classification and phylogeny ==
The capybara and the lesser capybara belong to the subfamily Hydrochoerinae along with the rock cavies. The living capybaras and their extinct relatives were previously classified in their own family Hydrochoeridae.

Capybara

The Empire State Building is a 102-story Art Deco skyscraper in Midtown Manhattan in New York City, United States. It was designed by Shreve, Lamb & Harmon and built from 1930 to 1931. Its name is derived from "Empire State", the nickname of the state of New York. The building has a roof height of 1,250 feet (380 m) and stands a total of 1,454 feet (443.2 m) tall, including its antenna. The Empire State Building stood as the world's tallest building until the construction of the World Trade Center in 1970; following its collapse in 2001, the Empire State Building was again the city's tallest skyscraper until 2012. As of 2020, the building is the seventh-tallest building in New York City, the ninth-tallest completed skyscraper in the United States, the 49th-tallest in the world, and the sixth-tallest freestanding structure in the Americas.
The site of the Empire State Building, in Midtown South on the west side of Fifth Avenue between West 33rd and 34th Streets, was developed in 1893 as the Waldorf–Astoria Hotel. In 1929, Empire State Inc. acquired the site and devised plans for a skyscraper there. The design for the Empire State Building was changed fifteen times until it was ensured to be the world's tallest building.

Empire State Building

Empire_State_Building

The mail or post is a system for physically transporting postcards, letters, and parcels. A postal service can be private or public, though many governments place restrictions on private systems. Since the mid-19th century, national postal systems have generally been established as a government monopoly, with a fee on the article prepaid. Proof of payment is usually in the form of an adhesive postage stamp, but a postage meter is also used for bulk mailing. With the advent of email, the retronym "snail mail" was coined.
Postal authorities often have functions aside from transporting letters. In some countries, a postal, telegraph and telephone (PTT) service oversees the postal system, in addition to telephone and telegraph systems. Some countries' postal systems allow for savings accounts and handle applications for passports.
The Universal Postal Union (UPU), established in 1874, includes 192 member countries and sets the rules for international mail exchanges.


== Etymology ==

The word mail comes from the Medieval English word male, referring to a travelling bag or pack.

Mail

The Nobel Prize ( NOH-bel; Swedish: Nobelpriset [nʊˈbɛ̂lːˌpriːsɛt]; Norwegian: Nobelprisen [nʊˈbɛ̀lːˌpriːsn̩]) is five separate prizes that, according to Alfred Nobel's will of 1895, are awarded to ”those who, during the preceding year, have conferred the greatest benefit to humankind.”
Nobel Prizes are awarded in the fields of Physics, Chemistry, Physiology or Medicine, Literature, and Peace (Nobel characterized the Peace Prize as "to the person who has done the most or best to advance fellowship among nations, the abolition or reduction of standing armies, and the establishment and promotion of peace congresses"). In 1968, Sveriges Riksbank (Sweden's central bank) established the Prize in Economic Sciences in Memory of Alfred Nobel, founder of the Nobel Prize. Nobel Prizes are widely regarded as the most prestigious awards available in their respective fields.Alfred Nobel was a Swedish chemist, engineer, and industrialist most famously known for the invention of dynamite. He died in 1896. In his will, he bequeathed all of his "remaining realisable assets" to be used to establish five prizes which became known as "Nobel Prizes." Nobel Prizes were first awarded in 1901.The prize ceremonies take place annually. Each recipient (known as a "laureate") receives a gold medal, a diploma, and a monetary award. In 2020, the Nobel Prize monetary award is 10,000,000 SEK, or US$1,145,000, or €968,000, or £880,000. A prize may not be shared among more than three individuals, although the Nobel Peace Prize can be awarded to organizations of more than three people. Although Nobel Prizes are not awarded posthumously, if a person is awarded a prize and dies before receiving it, the prize is presented.The Nobel Prizes, beginning in 1901, and the Nobel Memorial Prize in Economic Sciences, beginning in 1969, have been awarded 603 times to 962 people and 25 organizations. Four individuals have received more than one Nobel Prize.

Nobel Prize

Nobel_Prize

Sunday is the day of the week between Saturday and Monday. Sunday is a day of rest in most Western countries, and a part of the weekend.
For most observant Christians, Sunday is observed as a day of worship and rest, holding it as the Lord's Day and the day of Christ's resurrection; in Israel, the United States, Canada, China, Japan and the Philippines, as well as in South America, Sunday is the first day of the week. According to the Hebrew calendar and traditional calendars (including Christian calendars) Sunday is the first day of the week; Quaker Christians call Sunday the "first day" in accordance with their testimony of simplicity. The International Organization for Standardization ISO 8601, which is based in Switzerland, calls Sunday the seventh day of the week.


== Etymology ==

The name "Sunday", the day of the Sun, is derived from Hellenistic astrology, where the seven planets, known in English as Saturn, Jupiter, Mars, the Sun, Venus, Mercury and the Moon, each had an hour of the day assigned to them, and the planet which was regent during the first hour of any day of the week gave its name to that day. During the 1st and 2nd century, the week of seven days was introduced into Rome from Egypt, and the Roman names of the planets were given to each successive day.
Germanic peoples seem to have adopted the week as a division of time from the Romans, but they changed the Roman names into those of corresponding Teutonic deities. Hence, the dies Solis became Sunday (German, Sonntag).
The English noun Sunday derived sometime before 1250 from sunedai, which itself developed from Old English (before 700) Sunnandæg (literally meaning "sun's day"), which is cognate to other Germanic languages, including Old Frisian sunnandei, Old Saxon sunnundag, Middle Dutch sonnendach (modern Dutch zondag), Old High German sunnun tag (modern German Sonntag), and Old Norse sunnudagr (Danish and Norwegian søndag, Icelandic sunnudagur and Swedish söndag).

Sunday

Finland (Finnish: Suomi [ˈsuo̯mi] (listen); Swedish: Finland [ˈfɪ̌nland] (listen), Finland Swedish: [ˈfinlɑnd]), officially the Republic of Finland (Finnish: Suomen tasavalta, Swedish: Republiken Finland (listen to all)), is a Nordic country in Northern Europe. It shares land borders with Sweden to the west, Russia to the east, Norway to the north, and is defined by the Gulf of Bothnia to the west, and the Gulf of Finland of the Baltic Sea across Estonia to the south. Finland covers an area of 338,455 square kilometres (130,678 sq mi), with a population of 5.5 million. Helsinki is the country's capital and largest city, but together with the neighboring cities of Espoo, Kauniainen and Vantaa, it forms a larger metropolitan area. Finnish, the native language of the Finns, is among the few Finnic languages in the world. The climate varies relative to latitude, from the southern humid continental climate to the northern boreal climate. The land cover is primarily a boreal forest biome, with more than 180,000 recorded lakes.Finland was inhabited around 9000 BC after the Last Glacial Period. The Stone Age introduced several different ceramic styles and cultures. The Bronze Age and Iron Age were characterised by extensive contacts with other cultures in Fennoscandia and the Baltic region. From the late 13th century, Finland gradually became an integral part of Sweden as a consequence of the Northern Crusades.

Finland

Socotra or Soqotra (; Arabic: سُقُطْرَىٰ‎ Suquṭrā), located between the Guardafui Channel and the Arabian Sea, is the largest of the four islands in the Socotra Archipelago. The territory is located near major shipping routes and is officially part of Yemen, and had long been a subdivision of Aden Governorate. In 2004, it became attached to the Hadhramaut Governorate, which is much closer to the island than Aden (although the nearest governorate was the Al Mahrah Governorate). In 2013, the archipelago became its own governorate: Socotra Governorate.
The island of Socotra constitutes around 95% of the landmass of the Socotra Archipelago. It lies 380 kilometres (240 mi) south of the Arabian Peninsula. While politically a part of Yemen (part of the Arabian Peninsula and thus Western Asia), Socotra and the rest of its archipelago geographically are part of Africa.  The island is very isolated, home to a high number of endemic species; up to a third of its plant life is endemic. It has been described as "the most alien-looking place on Earth." The island measures 132 kilometres (82 mi) in length and 49.7 kilometres (30.9 mi) in width. In 2008 Socotra was recognised as a UNESCO World Heritage Site.

Socotra

The ocean (also the sea or the world ocean) is the body of salt water which covers approximately 71% of the surface of the Earth. It is also "any of the large bodies of water into which the great ocean is divided". These five oceans are, in descending order by area, the Pacific, Atlantic, Indian, Southern (Antarctic), and Arctic Oceans.Saline seawater covers approximately 361,000,000 km2 (139,000,000 sq mi) and is customarily divided into several principal oceans and smaller seas, with the ocean as a whole covering approximately 71% of Earth's surface and 90% of the Earth's biosphere. The oceans contains 97% of Earth's water, and oceanographers have stated that less than 20% of the oceans have been mapped. The total volume is approximately 1.35 billion cubic kilometers (320 million cu mi) with an average depth of nearly 3,700 meters (12,100 ft).As the world's ocean is the principal component of Earth's hydrosphere, it is integral to life, forms part of the carbon cycle, and influences climate and weather patterns. The ocean is the habitat of 230,000 known species, but because much of it is unexplored, the number of species in the ocean is much larger, possibly over two million. The origin of Earth's oceans is unknown; oceans are thought to have formed in the Hadean eon and may have been the cause for the emergence of life.
There are numerous environmental issues for oceans which include for example marine pollution, overfishing, ocean acidification and other effects of climate change on oceans.
Extraterrestrial oceans may be composed of water or other elements and compounds. The only confirmed large stable bodies of extraterrestrial surface liquids are the lakes of Titan, although there is evidence for oceans' existence elsewhere in the Solar System.

Ocean

The Eiffel Tower ( EYE-fəl; French: tour Eiffel [tuʁ‿ɛfɛl] (listen)) is a wrought-iron lattice tower on the Champ de Mars in Paris, France. It is named after the engineer Gustave Eiffel, whose company designed and built the tower. 
Locally nicknamed "La dame de fer" (French for "Iron Lady"), it was constructed from 1887 to 1889 as the entrance to the 1889 World's Fair and was initially criticised by some of France's leading artists and intellectuals for its design, but it has become a global cultural icon of France and one of the most recognisable structures in the world. The Eiffel Tower is the most-visited paid monument in the world; 6.91 million people ascended it in 2015.
The tower is 324 metres (1,063 ft) tall, about the same height as an 81-storey building, and the tallest structure in Paris. Its base is square, measuring 125 metres (410 ft) on each side. During its construction, the Eiffel Tower surpassed the Washington Monument to become the tallest man-made structure in the world, a title it held for 41 years until the Chrysler Building in New York City was finished in 1930.  It was the first structure in the world to surpass both the 200 meter and 300 meter mark in height. Due to the addition of a broadcasting aerial at the top of the tower in 1957, it is now taller than the Chrysler Building by 5.2 metres (17 ft). Excluding transmitters, the Eiffel Tower is the second tallest free-standing structure in France after the Millau Viaduct.

Eiffel Tower

Eiffel_Tower

Brazil (Portuguese: Brasil; Brazilian Portuguese: [bɾaˈziw]), officially the Federative Republic of Brazil, is the largest country in both South America and Latin America. It covers an area of 8,515,767 square kilometres (3,287,956 sq mi), with a population of over 211 million. Brazil is the world's fifth-largest and sixth-most populous country, composed of 26 states and the Federal District. It is the largest country to have Portuguese as an official language and the only one in the Americas. Brazil is one of the world's most multicultural and ethnically diverse nations, due to over a century of mass immigration from around the world. It is also the most populous Roman Catholic-majority country, and its capital is Brasília, while the largest city is São Paulo.
Brazil is bounded by the Atlantic Ocean to the east, and has a coastline of 7,491 kilometers (4,655 mi). It covers roughly half of South America's landmass, and borders all other countries in the continent except Ecuador and Chile. Its Amazon basin includes a vast tropical forest, home to diverse wildlife, a variety of ecological systems, and extensive natural resources spanning numerous protected habitats. This unique environmental heritage makes Brazil one of the seventeen megadiverse countries, and is the subject of significant global interest, as environmental degradation through processes like deforestation has direct impacts on global issues like climate change and biodiversity loss.

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