- Earth is the third planet from the Sun and the only astronomical object known to support life.
- 70.8% of Earth is covered with water.
- Earth’s outer layer is divided into several rigid tectonic plates that migrate across the surface over many millions of years, while its interior remains active with a solid iron inner core, a liquid outer core that generates Earth’s magnetic field, and a convective mantle that drives plate tectonics.
- Earth’s atmosphere consists mostly of nitrogen and oxygen.
- Earth’s gravity interacts with other objects in space, especially the Moon, which is Earth’s only natural satellite.
- Earth orbits around the Sun in about 365.25 days.
- The gravitational interaction between Earth and the Moon causes tides, stabilizes Earth’s orientation on its axis, and gradually slows its rotation.
- Earth is the densest planet in the Solar System and the largest and most massive of the four rocky planets.
- Earth formed over 4.5 billion years ago. Within the first billion years of Earth’s history, life appeared in the oceans.
- Over 99% of all species that ever lived on Earth are extinct.
- The shape of Earth is nearly spherical. There is a small flattening at the poles and bulging around the equator due to Earth’s rotation.
- The major heat-producing isotopes within Earth are potassium-40, uranium-238, and thorium-232.
- At the center, the temperature may be up to 6,000 °C (10,830 °F)
- The elevation of the land surface varies from the low point of −418 m (−1,371 ft) at the Dead Sea, to a maximum altitude of 8,848 m (29,029 ft) at the top of Mount Everest. The mean height of land above sea level is about 797 m (2,615 ft).
Also Read Facts about other planets in Solar system: Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune
