2006-09-06 10:28:45 · 9 answers · asked by Anonymous in Science & Mathematics ➔ Other - Science
EARTH is not perfect sphere but OBLATE spheroid...ie. like orange. Second part is on creation. We do have non-spherical objects in solar system like meteors and meteorites.
2006-09-10 08:41:43 · answer #1 · answered by Anonymous · 0⤊ 0⤋
Under weightless conditions,liquids tend to form into spheres. The earth is moving through space in a weightless environment and is mostly liquid,with a thin solid crust floating on a sea of magma,so it has formed a spherical shape. The Earth's rotation makes it bulge slightly at the equator,so it is actually a bit elliptical !!
2006-09-06 10:39:41 · answer #2 · answered by Ricvee 3 · 0⤊ 0⤋
A. God made it that way
B. a Sphere is the only shape which requires no energy to form (think soap bubbles) meaning a sphere happens naturally all other shapes must have force applied this is simple but it works
2006-09-06 10:41:48 · answer #3 · answered by alanpendragon 2 · 0⤊ 0⤋
because that is a shape which allows an optimum distribution of the mass in a rotating body. It helped that earth was much more fluid at the beginning and that gave the possibility of a continuous redistribution of the masses.
It's an opinion, a physicist would answer in a better way
2006-09-06 10:38:50 · answer #4 · answered by Anonymous · 0⤊ 0⤋
It didn't have to be a sphere. It couldn't been elliptical. You notice planets spin? You've heard the theory of the Big Bang in which celestial debris flew outward and started spinning, and that shrapnel was swirled up into planets? If you had a bunch of stuff floating in space, and put a spot of gravity in the middle, and it was rotating, then all the stuff that attaches to it is going to attach evenly around it. It's not going to develop corners and stuff.
2006-09-06 10:35:00 · answer #5 · answered by gilgamesh 6 · 0⤊ 0⤋
Because when its hot and still forming, and spinning it will always form a sphere. If it were falling through a heavy atmosphere, it would form a tear drop shape.
2006-09-06 10:35:18 · answer #6 · answered by retiredslashescaped1 5 · 0⤊ 0⤋
Because if you take any object that is as "soft" as the earth and spin it, gravity will make it into a sphere.
2006-09-06 10:35:25 · answer #7 · answered by dewcoons 7 · 0⤊ 0⤋
mass attracts mass...initial motion around the sun gives it a certain energy moment ....gravitational forces, centripetal ,rotational forces...accumulating mass tends to "balance" the forces....and a sphere has all the forces balanced in that all are directecd at/or away from the center "equally"
or
it fits into the cosmic egg carton easier that way
2006-09-06 10:38:27 · answer #8 · answered by Gemelli2 5 · 0⤊ 0⤋
It doesn't have to be- it IS. And because it wouldn't be rotating the way it should... it'd just mess things up.
2006-09-06 10:34:37 · answer #9 · answered by Ari 2 · 0⤊ 0⤋