Why is nearly everything in the world are nearly circular in shape.?

Question

Why is nearly everything in the world are nearly circular in shape.?

Answer 1

Round or circle is the most stable shape in the universe. So even this universe is also round.

Answer 2

All matter in the Universe are rotating themselves & rrevolve around other matters due to gravitational forces acting between 2 bodies which are bigger in proportions. The gravitational forces may vary with the mass of the body & also due to magnetic field possesses by the indivual bodies. Hence while these bodies are thus rotating it will exert 2 forces. They are centrifugal & other is centripetal. These forces being opposite may disturb the path of the body if they are not uniform. Only if a body is sphere in shape these forces could be equal not to unstabilize the body. Or it can be told that these forces to annul themselves equal  make the body circular.