Planet Earth

  • Distance from the Sun: Approximately 150 million kilometers.
  • Orbital Period: Takes about 365.25 days to complete one orbit.
  • Eccentricity: Earth’s orbit is slightly elliptical.
Physical Characteristics
  • Diameter: Around 12,742 kilometers.
  • Mass: Approximately 5.97 x 10^24 kilograms.
  • Surface Area: About 510.1 million square kilometers.
  • Gravity: Average surface gravity is approximately 9.8 m/s².
  • Atmosphere: Mainly nitrogen (78%) and oxygen (21%).
  • Other Gases: Trace amounts of argon, carbon dioxide, and other gases.
Geological Layers
  • Crust: Divided into tectonic plates.
  • Mantle: Semi-fluid layer beneath the crust.
  • Outer Core: Composed of molten iron and nickel.
  • Inner Core: Solid, primarily iron and nickel.
  • Oceans: Cover about 71% of the Earth’s surface.
  • Water: Approximately 97% of the Earth’s water is in the oceans.
  • Supports a diverse range of life forms.
  • Ecosystems: Varied ecosystems from deserts to rainforests.
  • Varied climates are due to factors like latitude and altitude.