Document: Earth

Question: what's the diameter of the earth in miles
Answer: The shape of Earth is approximately oblate spheroidal. Due to rotation, the Earth is flattened at the poles and bulging around the equator. The diameter of the Earth at the equator is 43 kilometres ( 27 mi ) larger than the pole - to - pole diameter. Thus the point on the surface farthest from Earth 's center of mass is the summit of the equatorial Chimborazo volcano in Ecuador. The average diameter of the reference spheroid is 12,742 kilometres ( 7,918 mi ). Local topography deviates from this idealized spheroid, although on a global scale these deviations are small compared to Earth 's radius: The maximum deviation of only 0.17 % is at the Mariana Trench ( 10,911 metres ( 35,797 ft ) below local sea level ), whereas Mount Everest ( 8,848 metres ( 29,029 ft ) above local sea level ) represents a deviation of 0.14 %.

Question: how many square miles of land surface area are there on the earth
Answer: Earth The Blue Marble photograph of Earth, taken during the Apollo 17 lunar mission in 1972 Orbital characteristics Epoch J2000 Aphelion 152 100 000 km ( 94 500 000 mi; 1.017 AU ) Perihelion 147 095 000 km ( 91 401 000 mi; 0.983 27 AU ) Semi-major axis 149 598 023 km ( 92 955 902 mi; 1.000 001 02 AU ) Eccentricity 6998167086000000000 ♠ 0.016 7086 Orbital period 365.256 363 004 d ( 1.000 017 420 96 yr ) Average orbital speed 29.78 km / s ( 107 200 km / h; 66 600 mph ) Mean anomaly 7000625904740362451 ♠ 358.617 ° Inclination 6999124878307980194 ♠ 7.155 ° to the Sun 's equator; 6998275533383683093 ♠ 1.578 69 ° to invariable plane; 6993872664625997166 ♠ 0.000 05 ° to J2000 ecliptic Longitude of ascending node 3000803464756118225 ♠ − 11.260 64 ° to J2000 ecliptic Argument of perihelion 7000199330266505796 ♠ 114.207 83 ° Satellites 1 natural satellite: the Moon 5 quasi-satellites > 1 800 operational artificial satellites > 16 000 space debris Physical characteristics Mean radius 6371.0 km ( 3958.8 mi ) Equatorial radius 6378.1 km ( 3963.2 mi ) Polar radius 6356.8 km ( 3949.9 mi ) Flattening 6997335280000000000 ♠ 0.003 3528 1 / 7002298257222101000 ♠ 298.257 222 101 ( ETRS89 ) Circumference 40 075.017 km equatorial ( 24 901.461 mi ) 40 007.86 km meridional ( 24 859.73 mi ) Surface area 510 072 000 km ( 196 940 000 sq mi ) 148 940 000 km land ( 57 510 000 sq mi; 29.2 % ) 361 132 000 km water ( 139 434 000 sq mi; 70.8 % ) Volume 7021108320999999999 ♠ 1.083 21 × 10 km ( 7011259876000000000 ♠ 2.598 76 × 10 cu mi ) Mass 7024597237000000000 ♠ 5.972 37 × 10 kg ( 7024597236001731600 ♠ 1.316 68 × 10 lb ) ( 7024596565000000000 ♠ 3.0 × 10 M ) Mean density 5.514 g / cm ( 0.1992 lb / cu in ) Surface gravity 9.807 m / s ( 7000100000000000000 ♠ 1 g; 32.18 ft / s ) Moment of inertia factor 0.3307 Escape velocity 11.186 km / s ( 40 270 km / h; 25 020 mph ) Sidereal rotation period 7004861641003520000 ♠ 0.997 269 68 d ( 23h 56m 4.100 s ) Equatorial rotation velocity 0.4651 km / s ( 1674.4 km / h; 1040.4 mph ) Axial tilt 6999409092629495479 ♠ 23.439 2811 ° Albedo 0.367 geometric 0.306 Bond Surface temp. min mean max Kelvin 184 K 288 K 330 K Celsius − 89.2 ° C 14.9 ° C 56.9 ° C Fahrenheit − 128.5 ° F 58.7 ° F 134.3 ° F Atmosphere Surface pressure 7005101325000000000 ♠ 101.325 kPa ( at MSL ) Composition by volume 78.08 % nitrogen ( N 2; dry air ) 20.95 % oxygen ( O 2 ) 0.934 % argon 0.0408 % carbon dioxide ~ 1 % water vapor ( climate variable )

Question: whats the distance between the earth and sun
Short answer: about 150 million km ( 93 million mi ) every
Answer: Earth orbits the Sun at an average distance of about 150 million km ( 93 million mi ) every 365.2564 mean solar days, or one sidereal year. This gives an apparent movement of the Sun eastward with respect to the stars at a rate of about 1 ° / day, which is one apparent Sun or Moon diameter every 12 hours. Due to this motion, on average it takes 24 hours -- a solar day -- for Earth to complete a full rotation about its axis so that the Sun returns to the meridian. The orbital speed of Earth averages about 29.78 km / s ( 107,200 km / h; 66,600 mph ), which is fast enough to travel a distance equal to Earth 's diameter, about 12,742 km ( 7,918 mi ), in seven minutes, and the distance to the Moon, 384,000 km ( 239,000 mi ), in about 3.5 hours.

Question: where does the original flow of energy on earth come from
Short answer: core 's
Answer: The mean heat loss from Earth is 87 mW m, for a global heat loss of 4.42 × 10 W. A portion of the core 's thermal energy is transported toward the crust by mantle plumes, a form of convection consisting of upwellings of higher - temperature rock. These plumes can produce hotspots and flood basalts. More of the heat in Earth is lost through plate tectonics, by mantle upwelling associated with mid-ocean ridges. The final major mode of heat loss is through conduction through the lithosphere, the majority of which occurs under the oceans because the crust there is much thinner than that of the continents.

Question: what is the diameter of the earth in km
Short answer: 12,742 kilometres (
Answer: The shape of Earth is approximately oblate spheroidal. Due to rotation, the Earth is flattened along the geographic axis and bulging around the equator. The diameter of the Earth at the equator is 43 kilometres ( 27 mi ) larger than the pole - to - pole diameter. Thus the point on the surface farthest from Earth 's center of mass is the summit of the equatorial Chimborazo volcano in Ecuador. The average diameter of the reference spheroid is 12,742 kilometres ( 7,918 mi ). Local topography deviates from this idealized spheroid, although on a global scale these deviations are small compared to Earth 's radius: The maximum deviation of only 0.17 % is at the Mariana Trench ( 10,911 metres ( 35,797 ft ) below local sea level ), whereas Mount Everest ( 8,848 metres ( 29,029 ft ) above local sea level ) represents a deviation of 0.14 %.

Question: what is the surface area of the earth
Short answer: about 510 million km ( 197 million sq mi ).
Answer: The total surface area of Earth is about 510 million km ( 197 million sq mi ). Of this, 70.8 %, or 361.13 million km ( 139.43 million sq mi ), is below sea level and covered by ocean water. Below the ocean 's surface are much of the continental shelf, mountains, volcanoes, oceanic trenches, submarine canyons, oceanic plateaus, abyssal plains, and a globe - spanning mid-ocean ridge system. The remaining 29.2 %, or 148.94 million km ( 57.51 million sq mi ), not covered by water has terrain that varies greatly from place to place and consists of mountains, deserts, plains, plateaus, and other landforms. Tectonics and erosion, volcanic eruptions, flooding, weathering, glaciation, the growth of coral reefs, and meteorite impacts are among the processes that constantly reshape the Earth 's surface over geological time.

Question: which part of earth is covered with water
Short answer: 71 % of
Answer: Earth 's lithosphere is divided into several rigid tectonic plates that migrate across the surface over periods of many millions of years. About 71 % of Earth 's surface is covered with water, mostly by oceans. The remaining 29 % is land consisting of continents and islands that together have many lakes, rivers and other sources of water that contribute to the hydrosphere. The majority of Earth 's polar regions are covered in ice, including the Antarctic ice sheet and the sea ice of the Arctic ice pack. Earth 's interior remains active with a solid iron inner core, a liquid outer core that generates the Earth 's magnetic field, and a convecting mantle that drives plate tectonics.

Question: what is the diameter of earth in km
Short answer: about 12,742 km (
Answer: Earth orbits the Sun at an average distance of about 150 million km ( 93 million mi ) every 365.2564 mean solar days, or one sidereal year. This gives an apparent movement of the Sun eastward with respect to the stars at a rate of about 1 ° / day, which is one apparent Sun or Moon diameter every 12 hours. Due to this motion, on average it takes 24 hours -- a solar day -- for Earth to complete a full rotation about its axis so that the Sun returns to the meridian. The orbital speed of Earth averages about 29.78 km / s ( 107,200 km / h; 66,600 mph ), which is fast enough to travel a distance equal to Earth 's diameter, about 12,742 km ( 7,918 mi ), in seven minutes, and the distance to the Moon, 384,000 km ( 239,000 mi ), in about 3.5 hours.

Question: what is the size of earth in km
Short answer: 40 075.017 km equatorial
Answer: Earth The Blue Marble photograph of Earth, taken during the Apollo 17 lunar mission in 1972 Orbital characteristics Epoch J2000 Aphelion 152 100 000 km ( 94 500 000 mi; 1.017 AU ) Perihelion 147 095 000 km ( 91 401 000 mi; 0.983 27 AU ) Semi-major axis 149 598 023 km ( 92 955 902 mi; 1.000 001 02 AU ) Eccentricity 6998167086000000000 ♠ 0.016 7086 Orbital period 365.256 363 004 d ( 1.000 017 420 96 yr ) Average orbital speed 29.78 km / s ( 107 200 km / h; 66 600 mph ) Mean anomaly 7000625904740362451 ♠ 358.617 ° Inclination 6999124878307980194 ♠ 7.155 ° to the Sun 's equator; 6998275533383683093 ♠ 1.578 69 ° to invariable plane; 6993872664625997166 ♠ 0.000 05 ° to J2000 ecliptic Longitude of ascending node 3000803464756118225 ♠ − 11.260 64 ° to J2000 ecliptic Argument of perihelion 7000199330266505796 ♠ 114.207 83 ° Satellites 1 natural satellite: the Moon 5 quasi-satellites > 1 400 operational artificial satellites > 16 000 space debris Physical characteristics Mean radius 6371.0 km ( 3958.8 mi ) Equatorial radius 6378.1 km ( 3963.2 mi ) Polar radius 6356.8 km ( 3949.9 mi ) Flattening 6997335280000000000 ♠ 0.003 3528 1 / 7002298257222101000 ♠ 298.257 222 101 ( ETRS89 ) Circumference 40 075.017 km equatorial ( 24 901.461 mi ) 40 007.86 km meridional ( 24 859.73 mi ) Surface area 510 072 000 km ( 196 940 000 sq mi ) 148 940 000 km land ( 57 510 000 sq mi; 29.2 % ) 361 132 000 km water ( 139 434 000 sq mi; 70.8 % ) Volume 7021108320999999999 ♠ 1.083 21 × 10 km ( 7011259876000000000 ♠ 2.598 76 × 10 cu mi ) Mass 7024597237000000000 ♠ 5.972 37 × 10 kg ( 7024597236001731600 ♠ 1.316 68 × 10 lb ) ( 7024596565000000000 ♠ 3.0 × 10 M ) Mean density 5.514 g / cm ( 0.1992 lb / cu in ) Surface gravity 9.807 m / s ( 7000100000000000000 ♠ 1 g; 32.18 ft / s ) Moment of inertia factor 0.3307 Escape velocity 11.186 km / s ( 40 270 km / h; 25 020 mph ) Sidereal rotation period 7004861641003520000 ♠ 0.997 269 68 d ( 23h 56m 4.100 s ) Equatorial rotation velocity 0.4651 km / s ( 1674.4 km / h; 1040.4 mph ) Axial tilt 6999409092629495479 ♠ 23.439 2811 ° Albedo 0.367 geometric 0.306 Bond Surface temp. min mean max Kelvin 184 K 288 K 330 K Celsius − 89.2 ° C 15 ° C 56.7 ° C Fahrenheit − 128.5 ° F 59 ° F ( 15 ° C ) 134 ° F ( 57 ° C ) Atmosphere Surface pressure 7005101325000000000 ♠ 101.325 kPa ( at MSL ) Composition by volume 78.08 % nitrogen ( N; dry air ) 20.95 % oxygen ( O ) 0.930 % argon 0.0402 % carbon dioxide ~ 1 % water vapor ( climate - variable )

Question: what is the real name of the earth
Short answer: the Earth,
Answer: Originally, earth was written in lowercase, and from early Middle English, its definite sense as `` the globe '' was expressed as the earth. By Early Modern English, many nouns were capitalized, and the earth became ( and often remained ) the Earth, particularly when referenced along with other heavenly bodies. More recently, the name is sometimes simply given as Earth, by analogy with the names of the other planets. House styles now vary: Oxford spelling recognizes the lowercase form as the most common, with the capitalized form an acceptable variant. Another convention capitalizes `` Earth '' when appearing as a name ( e.g. `` Earth 's atmosphere '' ) but writes it in lowercase when preceded by the ( e.g. `` the atmosphere of the earth '' ). It almost always appears in lowercase in colloquial expressions such as `` what on earth are you doing? ''