4.Earth

Earth
Diameter: 12,756.28 km
Distance from the sun: 149,597,870 km
Period of rotation: 23 Hours 56.1 Min
Period of revolution: 1 Year, 0 Days, 0 Hours
Atmosphere: Mostly Nitrogen and Oxygen.
Temperatures:
Max – 50°C
Min – -70°C
Number and name of moons:
Number – 3
Names of moons - Moon
Earth is mostly iron, oxygen and silicon
If you could separate the Earth out into piles of material, you'd get 32.1 % iron, 30.1% oxygen, 15.1% silicon, and 13.9% magnesium. Of course, most of this iron is actually down at the core of the Earth. If you could actually get down and sample the core, it would be 88% iron. 47% of the Earth's crust consists of oxygen.

Earth doesn't take 24 hours to rotate on its axis
It's actually 23 hours, 56 minutes and 4 seconds. This is the amount of time it takes for the Earth to completely rotate around its axis; astronomers call this a sidereal day.