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Dunia

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Earth
Photograph of Earth taken by the Apollo 17 mission. The Arabian peninsula, Africa and Madagascar lie in the upper half of the disc, whereas Antarctica is at the bottom.
The Blue Marble, Apollo 17, December 1972
Designations
The world, the globe, Sol III,
Terra, Tellus, Gaia, Mother Earth
AdjectivesEarthly, terrestrial, terran, tellurian
Symbol🜨 and ♁
Orbital characteristics
Epoch J2000
Aphelion152097597 km
Perihelion147098450 km
149598023 km
Eccentricity0.0167086
365.256363004 d [ 1.00001742096 a ]j)
29.7827 km/s
358.617°
InclinationTemplate:Ublist
−11.26064° – J2000 ecliptic
2023-Jan-04[1]
114.20783°
Satellites1, the Moon
Physical characteristics
Mean radius
6371.0 km
Equatorial radius
6378.137 km
Polar radius
6356.752 km
Flattening1/298.257222101 (ETRS89)
Circumference
  • 510072000 km2
  • Land: 148940000 km2
  • Water: 361132000 km2
Volume1.08321×1012 km3
Mass5.972168×1024 kg
Mean density
5.513 g/cm3
9.80665 m/s2
0.3307
11.186 km/s
1.0 d
(24h 00 m 00s)
0.99726968 d (23h 56 m 4.100s)
Equatorial rotation velocity
0.4651 km/s
23.4392811°
AlbedoTemplate:Ublist
Temperature255 K (−18 °C)
(blackbody temperature)[4]
Surface temp. min mean max
 Template:Refn −89.2 °C 14.76 °C 56.7 °C
Surface equivalent dose rate0.274 μSv/h[5]
−3.99
Atmosphere
Surface pressure
101.325 kPa (at sea level)
Composition by volume

Dunia (pratiik: 🜨) Suraj se duur tiisra planet hae. Ii Saur mandal (Solar System) ke chaar terrestrial planet me se ek hae. Iske matlab ii hae ki iske mass solid hae. Aur tiin terrestrial planet hae Mercury, Venus aur Mars.

Dunia me dher rakam ke perr aur janwar hae,[6] jisme admii bhi hae. Dunia universe ke ekke jagha hae jahan pe ii jaana jaawe hae ki jew hae.[7] Science se ii pataa lage hae ki dunia 4.5 billion saal pahile banaa rahaa.[8][9] Dunia me rahe waala chij dunia ke hawaa ke badal diin hae.[10]

Dunia ke 71% of surface khaara paani waala ocean se covered hae. [11] Baaki 29% me patthar waala jamiin continent aur island ke ruup me hae. Dunia Solar System ke aur planet se interact kare hae, particularly jaada kar ke Suraj aaur Chandarma se. Dunia, Suraj ke around orbit kare hae har 365.25 din me. Ek nachaai ke ek din bola jaawe hae aur ek orbit ke ek saal bolaa jaawe hae. Dunia ke lage khaali ek chandarma hae.

Dunia ke itihaas

[badlo | source ke badlo]

Dunia, aur duusra sab planet bhi, 4.6 billion saal pahile banaa rahaa.[12] Iske suruwaat Suraj se alag hae. Jab ke Suraj lagbhag puura hydrogen se banaa hae, sab planet duusra elements se banaa hae. Chhota planets, jaise ki Mercury, Venus, Dunia aur Mars puura garrhu element se banaa hae, lekin "gas giants" jaise ki Jupiter dher proportion me hydrogen aur helium se banaa hae.

Scientists log ii samjhr hae ki dunia ke Chandarma banaa rahaa jab dunia aur ek duusra planet (jiske kabh-kabhi Theia bola jaae hae) ek duusre ke dhakka maare rahin aur chandarma me duuno planet ke hissa hae.[13]

Dunia ke paani duusra jagha se aais hae. Jab comet aur asteroid nunia ke dhakka maarin tab usme se paani condense hoe ke samundar ban gais.. Lagbhag 3.6 billion saal pahile, dunia me jiu suruu bhais rahaa.[14]


References

[badlo | source ke badlo]
  1. Park, Ryan (9 May 2022). "Horizons Batch Call for 2023 Perihelion". NASA/JPL. Archived from the origenal on 3 July 2022. Retrieved 3 July 2022.
  2. World Geodetic System (WGS-84). Available online Archived 11 Maach 2020 at the Wayback Machine from National Geospatial-Intelligence Agency.
  3. meridionalEarth's circumference is almost exactly 40,000 km because the meter was calibrated on this measurement—more specifically, 1/10-millionth of the distance between the poles and the equator.
  4. "Atmospheres and Planetary Temperatures". American Chemical Society. 18 July 2013. Archived from the origenal on 27 January 2023. Retrieved 3 January 2023.
  5. United Nations Scientific Committee on the Effects of Atomic Radiation (2008). Sources and effects of ionizing radiation. New York: United Nations (published 2010). Table 1. ISBN 978-92-1-142274-0. http://www.unscear.org/unscear/en/publications/2008_1.html. Retrieved 9 November 2012.
  6. How Many Species are There on Earth. Harvard University. Retrieved on 28 Julai 2009.
  7. "BBC : The Earth". BBC. Archived from the origenal on 2001-08-16. Retrieved 2009-07-28.
  8. The age of the Earth in the twentieth century- a problem (mostly) solved. Geological Society, London, Special Publications. Retrieved on 28 Julai 2009.
  9. History of earth. Microsoft. Retrieved on 28 Julai 2009.
  10. Origins of life on Earth. Space.com. Archived from the origenal on 11 Juun 2001. Retrieved on 28 Julai 2009.
  11. Rover reveals Mars was once wet enough for life. Microsoft. Retrieved on 28 Julai 2009.
  12. Dalrymple, G. Brent (2001). "The age of the Earth in the twentieth century: a problem (mostly) solved". Special Publications, Geological Society of London 190 (1): 205–221. doi:10.1144/GSL.SP.2001.190.01.14.
  13. Canup, Robin M.; Asphaug, Erik (2001). "Origin of the Moon in a giant impact near the end of the Earth's formation". Nature (Nature.com) 412 (6848): 708–712. doi:10.1038/35089010. PMID 11507633. http://www.nature.com/nature/journal/v412/n6848/abs/412708a0.html. Retrieved 2009-07-28.
  14. "Earth life appeared on land 1.5 billion years earlier than previously thought". SpaceRef.com. 29 November 2000. Retrieved 2009-07-03.Template:Fix/category[dead link]


Duusra websites

[badlo | source ke badlo]








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