Earth is the fifth planet from the Sun. It is home to all known life in the universe. The humans, plants, animals, and other known organisms are able to survive because the Sun is exactly the right distance from the Earth. The Earth is not fully round-it bulges at the center.
- How many kilometers is Earth from the sun?
- What is Earth's diameter?
- What is Earth's average surface temperature?
- How many moons does Earth have?
- How many hours is Earth's sidereal day?