just wondering
2007-06-21 10:31:23 · 7 answers · asked by kirsten l 1 in Science & Mathematics ➔ Earth Sciences & Geology
It is about 4.5 billion years old. We know this from radioactive isotopes in rocks on land
2007-06-21 10:35:08 · answer #1 · answered by Brendan C 2 · 1⤊ 0⤋
No one can know because its impossible to go all the way back to the big bang or other theories and start counting years. For all we know it could have been made 1000 years ago.
2007-06-23 16:30:30 · answer #2 · answered by Nimali F 5 · 0⤊ 0⤋
About 4.5 billion years, give or take a few hundred million.
2007-06-21 17:49:17 · answer #3 · answered by stork5100 4 · 0⤊ 0⤋
4.6 billion yrs old
2007-06-21 17:34:09 · answer #4 · answered by Jenwen 2 · 0⤊ 0⤋
4.6 billion years old.
http://en.wikipedia.org/wiki/Age_of_the_Earth
2007-06-21 17:35:13 · answer #5 · answered by Brian L 7 · 0⤊ 0⤋
4.65 billion years?
2007-06-21 17:42:35 · answer #6 · answered by Bri 3 · 0⤊ 0⤋
Only God knows!
2007-06-21 17:34:58 · answer #7 · answered by ♥Emoni♥ 2 · 0⤊ 1⤋