Small objects such as asteroids and comets are the least likely. Gravity cannot shape such small objects into spheres, so many asteroids and comets assume elongated shapes.
It is in space, they have different shape
The Earth is geoid THE EARTH IS SPHERICAL
The strength of gravity on small asteroids is less than the strength of the rock.
the shape of the earth is not flat. it has a spherical shape. its slightly flattened at the poles to give a nearly spherical shape hence; the earth's shape is better described as a geoid which means the earth's shape
Gravity pulls the asteroids into spheres when they get big enough.
it is do with the gravity ...
Some asteroids are irregular in shape and heavily pockmarked by impact craters and some of them have spherical shape.
an eclipse is a evidence of the earth being in spherical shape is that it can figure it self...
The Earth, and larger bodies, are approximately spherical due to gravitation. The Earth's rotation will tend to make it deviate from a spherical shape.
The pull of gravity over a long time pulls it into a spherical shape.