becuz half our earth is 80% water and the water has salt in it you dummys
its the only planet with water and 75% of the earth is covered by water and 97% of that 75% is saltwater and the 3% is fresh water.
We are called Earth. "Blue Planet" is a nickname for Earth, since our planet comprises primarily of water.
Planet Earth.
Jupiter is called the giant planet
earth
My planet, and yours, is called Earth.
Earth.
Earth is the third planet from the Sun. The planet that we live on is called Earth.
Because Earth is the only planet known to have life.
The major part of saltwater in the hydrosphere is found in the oceans. Oceans cover about 70% of the Earth's surface and contain most of the planet's saltwater. The salt in seawater comes from the erosion of rocks on land.
Earth is called a life sustaining planet because it has life on it, and is currently the only known planet that supports life.
The science of planet Earth is called "geology."