Earth is our Home planet. There are only one habitable planet in our solar system. Habitable means in short answer a place or planet that is suitable for life. Earth is only planet that is suitable for life. Our duty is to clean our plant. It's only one.
So, earth diameter is 12742 km. This means earth radius is 6371 km. Earth have only one natural satellite moon.
What is Satellite?
In short answer Satellite means moon, planet and machine. Moon is earth's natural Satellite because moon orbits earth. Earth is sun's satellite. There are many man made Satellite that orbits our planet.
So, earth orbits day is 365 days. Earth orbits the sun in 365 days. And earth rotates in 24 hours. But in reality earth rotates in 23 hours, 56 minutes, and 4 seconds.
So, earth have much water than land... About 71 percent of earth's surface is water but 96.5 percent of earth's water is sea water. Only 3 percent of water is fresh. 2.5 percent of earth water unavailable. Because it is locked up in glaciers, and polar ice. Only 0.5 percent of earth's water available. So, save water save earth. earth is full water but only 0.5 percent is available.
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