Information About Earh
Earth is the third planet from the Sun. It is a unique and precious planet, providing a habitat for diverse life forms, including humans. Following are some interesting facts about our home planet, Earth:
Basic Facts About Planet Earth
- Earth is our home planet, and it is the third planet from the sun.
- Earth is the only known planet in the universe where life has originated and found habitability.
- Earth orbits the Sun once every 365.25 days. Since our calendar year is only 365 days, we add every fourth year as an extra leap day to balance the difference.
- Earth rotates its axis every 23.9 hours.
- Earth’s spin axis is tilted for its orbital plane. This causes the seasons. When the Earth’s axis points towards the Sun, it is summer for that hemisphere. When Earth’s axis points away from the sun, it is winter for that hemisphere.
- Like Mercury, Venus, and Mars, Earth is also a terrestrial planet, containing mountains, valleys, and volcanoes.
- 70% of the Earth’s surface is covered by water. It is an ocean planet.
- Earth appears blue because oceans reflect blue light, and it appears green in some areas because most of the land is covered with plants, which reflect green light.
- Every other planet in the solar system was named for a Greek or Roman god or goddess. Only ‘Earth’ is a Germanic word, which simply means ‘The Ground’.
Quick Facts :
- It takes sunlight 8 minutes and 20 seconds to travel from the sun to Earth.
- Earth has one moon and it is ringless.
- Volcanic eruptions and outgassing created Earth’s atmosphere and oceans.
- Earth’s atmosphere is composed mainly of nitrogen (about 78%) and oxygen (about 21%), with trace amounts of other gases, including carbon dioxide, argon, and water vapor. This mixture is essential for supporting life, regulating temperature, and protecting the planet from harmful solar radiation.
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