that is not true
It contributes to its roundness
and blue and green super boncey ball ^_^
No, the shape is sphere for example; If you went and got a orange and squeezed the top and bottom with your thumb and finger its about that roundness.
The roundness of the Earth was proved by the Greeks in the 3rd century BC and further verified by just about every society which was not based in Christianity in subsequent centuries. Therefore, no space flight was necessary to confirm the roundness of the Earth.
There is not fifth planet on Earth, since Earth is a planet...
Earth.
It means a planet that is to small to be called one. EG. Pluto is a planetary object but its size denies it of being called a planet.
If you can see the horizon in the distance (like on a ship) you can notice the curvature of the earth. It's harder to notice when buildings and hills are in the way.
The earth is the only planet on earth.
The planet after the Earth is Mars.
the planet after earth is mars