1.3 / August 4, 2021
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Description

Earth is the third planet from the Sun, the densest planet intheSolar System, the largest of the Solar System's fourterrestrialplanets, and the only astronomical object known toharbor life.According to radiometric dating and other sources ofevidence,Earth formed about 4.54 billion years ago.[27][28][29]Earthgravitationally interacts with other objects in space,especiallythe Sun and the Moon. During one orbit around the Sun,Earthrotates about its own axis 366.26 times, creating 365.26 solardaysor one sidereal year.[n 7] Earth's axis of rotation is tilted23.4°away from the perpendicular of its orbital plane,producingseasonal variations on the planet's surface with a periodof onetropical year (365.24 solar days).[30] The Moon is Earth'sonlypermanent natural satellite. Its gravitational interactionwithEarth causes ocean tides, stabilizes the orientation ofEarth'srotational axis, and gradually slows Earth's rotationalrate.[31]Earth's lithosphere is divided into several rigid tectonicplatesthat migrate across the surface over periods of many millionsofyears. 71% of Earth's surface is covered with water,[32] withtheremainder consisting of continents and islands that togetherhavemany lakes and other sources of water that contribute tothehydrosphere. Earth's polar regions are mostly covered withice,including the Antarctic ice sheet and the sea ice of the Arcticicepack. Earth's interior remains active with a solid iron innercore,a liquid outer core that generates the magnetic field, andaconvecting mantle that drives plate tectonics. Within itsfirstbillion years,[33] life appeared in Earth's oceans and begantoaffect its atmosphere and surface, leading to the proliferationofaerobic and anaerobic organisms. Since then, the combinationofEarth's distance from the Sun, its physical properties anditsgeological history have allowed life to thrive and evolve.Theearliest undisputed life on Earth arose at least 3.5 billionyearsago. Earlier physical evidence of life includes biogenicgraphitein 3.7 billion-year-old metasedimentary rocks discoveredinsouthwestern Greenland, as well as "remains of biotic life"foundin 4.1 billion-year-old rocks in Western Australia.[34][35]Earth'sbiodiversity has expanded continually except wheninterrupted bymass extinctions.[36] Although scholars estimate thatover 99% ofall species of life (over five billion)[37] that everlived onEarth are extinct,[38][39] there are still an estimated10–14million extant species,[40][41] of which about 1.2 millionhavebeen documented and over 86% have not yet been described.[42]Morerecently, in May 2016, scientists reported that 1 trillionspeciesare estimated to be on Earth currently with onlyone-thousandth ofone percent described.[43] Over 7.3 billionhumans[44] live onEarth and depend on its biosphere and mineralsfor their survival.Earth's human population is divided among about200 sovereignstates that interact through diplomacy, conflict,travel, trade,and communication media.

App Information Earth

  • App Name
    Earth
  • Package Name
    com.infoappzbrew.earth
  • Updated
    August 4, 2021
  • File Size
    24M
  • Requires Android
    Android 4.1 and up
  • Version
    1.3
  • Developer
    GeneralKnowledge
  • Installs
    5,000+
  • Price
    Free
  • Category
    Books & Reference
  • Developer
    Lorong 1 26400 Bandar Jengka Pahang Malaysia
  • Google Play Link

GeneralKnowledge Show More...

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