It has always been one piece. If you are refering to the continents being one piece, then yes they were. The super continent was known as Pangaea which was a combination of each continent. Through continental drift, the continents were split into what they are now. In the future, the continents will change once again as continental drift continues as we speak.
It depends how big the piece is: a gram, an ounce, a ton...
This depends on your own piece of cheese.
Use a big piece of paper, or make one with cardboard and staples.
Earth is one of the smaller ones.
There are 10 calories in one piece of big red gum.
When Earth was one big continent.
One metre.
There is none, we let them fall. Thousands of pieces of manmade space-junk fall back to earth every year, not one piece has ever harmed a human being. The earth is big, we are small, and most importantly, most of the junk burns up in the atmo : D
one foot up and down and a half a foot.
Here's one , Man who have sex with woman on the ground, have piece on earth.
A Big Piece of Garbage was created on 1999-05-11.
There are several THOUSAND artificial satellites orbiting the Earth, and one big natural one; the Moon.