2006-09-03 23:21:42 · 21 answers · asked by Rebecca P 2 in Environment
Because it needs to diet.
2006-09-03 23:26:23 · answer #1 · answered by Pete T 3 · 0⤊ 4⤋
Think of Newton's Law of gravity, which defines the attraction between all masses. If you put a bunch of little pieces of "mass", or debris in empty space, every Little piece would be attracted to the others. Given a lengthy amount of time, and no major disturbances, it would be natural for all the masses to come together into one large mass, ex: a planet. Given the gravitational equation states that the closer the objects are to one another, the stronger the attraction, this would be observed as all the little pieces of debris trying to be closest to the most debris. Also given that all the piece are attracted by the other pieces, if there was a oblong shape forming, then pieces perpendicular to the "long" side would be attracted by pieces reaching to both ends, whose forces would cancel out, thus attracting the perpendicular debris to the center, adding to the middle and rounding the oblong shape.
2006-09-04 06:34:08 · answer #2 · answered by jdrisch 2 · 3⤊ 1⤋
Well am not a qualified geologist nor an astro physics person but I guess it has something to do with the earth spinning on its orbit. The gravitational forces of the Sun and the rest of the planets coupled with the rotary movement leads to the round shape of the earth.
2006-09-04 06:42:17 · answer #3 · answered by robin h 1 · 2⤊ 1⤋
The earth is basically round.That's true.Its slight oval shape is due to its rotation around its axis.The reason lies about 1000 million years ago.When earth was just born, it was just a bunch of red hot gases solar gases.Slowly, it cooled down to its liquid state and formed an irregular shape.I hope u know about the concept of surface tension in liquids.This surface tension made the liquid earth to form a round shape.As surface tension always tends to achieve minimum area and sphere has the minimum surface area for any given volume. Hence , earth achieved sphere shape right from its liquid state and when it cooled down to solid state it, it became permanently round.This concept is true not only for earth but for any space object( suns, planets, stars, etc..)
2006-09-04 09:44:05 · answer #4 · answered by i_Abhishek 2 · 0⤊ 1⤋
The planet earth is not round, but is slightly ovoid between the 2 poles.
2006-09-04 08:38:16 · answer #5 · answered by World Wise 2 · 0⤊ 1⤋
the world seems round because the eyes we look with round, the rain drops that feeds it is round, the sun that mothers it is round!
2006-09-04 06:59:22 · answer #6 · answered by 010687 1 · 0⤊ 2⤋
Gravity and rotation. It actually bulges slightly around the equator due to the outward force created by its rotation. The correct term for the shape of the Earth is an oblate spheroid.
2006-09-04 06:25:18 · answer #7 · answered by anonymous_dave 4 · 1⤊ 1⤋
It is not exactly round as others have pointed out. However that is our description based on the five senses that we humans have.
2006-09-04 07:04:45 · answer #8 · answered by Unspun 1 · 0⤊ 1⤋
It may appear to be but the world is not perfectly spherical. Its a geoid shape - which is a horrendous concept to interpret but basically its a shape of a ellipsoid (stretched out circle!)
2006-09-04 13:20:00 · answer #9 · answered by TT 2 · 0⤊ 1⤋
all of the pressure coming all sides of space make it round I guess. Kind of like the way you see a bubble under water. Gravity plays part in it too.
2006-09-04 06:31:33 · answer #10 · answered by Marcel 2 · 0⤊ 2⤋
Stupid,the world is not round.Earh is round.
2006-09-04 06:25:36 · answer #11 · answered by Sweetbuz 3 · 0⤊ 4⤋