earth

EARTH

Classification: Terestrial Planet

Length of year: 365 Days

Length of day: 24 hr

Diameter: 12,756 Km

Mass:5.976e+24  Kg

Moons: One

Atmosphere: 78% Nitrogen, 21% Oxygen, 1% Argon, Trace amounts of Carbon Dioxide and Water Vapor

Earth is the third planet from the sun. It is the only known planet to contain life within our solar system. 70% of Earth's surface is covered in Water. It is the perfect planet to support life. It is also the densest of all the planets.