why is the earth round?

Question

i have wondered why my whole life

Answer 1

Suppose the Earth were a long tube. The longer ends would be attracted inwards due to gravity. This pattern repeats until the earth is round.

Answer 2

Any sufficiently large mass will tend to be pulled into a round shape by the force of gravity. Gravity is an inherent property of matter--all matter.

Your toothbrush exerts a gravitational pull against the earth. The reason the earth does not rise up to fall against your toothbrush while you are brushing your teeth is because the pull of your toothe brush is proportionate to its mass. The mass of the earth is a bit greater than that of your tooth brush, so that when you drop it, it falls most of the way--the earth falls towards it only immeasurably slightly.

Gravity is the weakest of the four fundamental forces. Electromagnetism, which holds molecules together, is much stronger. The chemical bonds between the molecules in your toothbrush keep it from collecting into a spherical shape. Asteroids are, for the most part, too small for gravity to warp them into round shapes. Ceres--the biggest asteroid--is fairly round, probably due both to impacts and the effect of gravity.

Any object bigger than Ceres will tend to be round.

Answer 3

Both centripetal and centrifugal forces cause an eventual roundening of an object which was hurled from a violent pitch or an explosion. If there are many objects the group even ends up in a spiral shape.
Just the way the laws of physics work.

Answer 4

Because if it was square you'd fall off the edge.

Answer 5

Are you serious? Basic physics tells you.

Answer 6

because of its volume, mass, gravity and rotation.

Answer 7

gravity pushes it together that way as it spins