Earth
OUR HOME PLANET : EARTH Earth Is The Third Planet From The Sun And The Only Astronomical Object Known To Harbor Life. While Large Volumes Of Water Can Be Found Throughout The Solar System, Only Earth Sustains Liquid Surface Water. About 71% Of Earth's Surface Is Made Up Of The Ocean, Dwarfing Earth's Polar Ice, Lakes, And Rivers. The Remaining 29% Of Earth's Surface Is Land, Consisting Of Continents And Islands. Earth's Surface Layer Is Formed Of Several Slowly Moving Tectonic Plates, Interacting To Produce Mountain Ranges, Volcanoes, And Earthquakes. Earth's Liquid Outer Core Generates The Magnetic Field That Shapes Earth's Magnetosphere, Deflecting Destructive Solar Winds. Earth's Atmosphere Consists Mostly Of Nitrogen And Oxygen. Greenhouse Gases In The Atmosphere Like Carbon Dioxide (Co2) Trap A Part Of The Energy From The Sun Close To The Surface. Water Vapor Is Widely Present In The Atmosphere And Forms Clouds That Cover Most Of The Planet. More Solar