How has modern civilization accelerated this cycle?
2007-10-14 13:14:54 · 5 answers · asked by George A 5 in Science & Mathematics ➔ Earth Sciences & Geology
'mankind' is an organism that lives on top of the outer crust of the earth, and although humans might kill off a lot of their own kind, they will never be able to harm the earth
the earth will survive mankind
2007-10-14 13:23:06 · answer #1 · answered by Anonymous · 1⤊ 0⤋
Some scientists say about 4 billion years. If you have suddenlink you can watch the science channel on fridays or saturdays and it hass astronomical movies on it. That's where I thought of this answer.
2007-10-14 20:24:04 · answer #2 · answered by APew! 2 · 0⤊ 0⤋
the estimated life span of the earth will last about as long as our ignorance.
2007-10-16 06:45:37 · answer #3 · answered by Christopher A 1 · 0⤊ 0⤋
Probably 8 billion years, of which half is used up.
2007-10-14 20:24:20 · answer #4 · answered by Thomas E 7 · 0⤊ 0⤋
Umm... No scientist know that! Only the Great, almighty Lord knows that!
2007-10-14 21:46:40 · answer #5 · answered by Becca A 1 · 0⤊ 0⤋