Lets just say that all humans disapeared tomorrow, how long would it take for are remains (freeways, buildings, cars ect.) to decompose?
2006-09-20 14:54:51 · 10 answers · asked by Anonymous in Science & Mathematics ➔ Other - Science
Some of what humankind has built would take thousands of years to disintegrate... in fact, if there were few or no natural catastrophes to help along the process, many of the more recent, steeel & pexiglass buildings could conceivably stay "intact" for "eons." Space archeologists would find alot of "stuff" that would show little degredation in these near-hermetically sealed buildings/ structures.
2006-09-20 15:09:25 · answer #1 · answered by cherodman4u 4 · 1⤊ 0⤋
It depends on the buildings... I would think the pyramids would be here a couple thousand years longer.. Some of our larger buildings that we have now will make it a couple thousand as well pretty easily. Our underground bunkers might still be there 10 thousand years. Most everything else would be gone in a hundred years or so.
Just maybe something would still be here when the next master race shows up but may not make it though their early ages. I understand that we have time capsules that would last for 100 thousand years so maybe they just might be found. Hard to say. Fairly sure that the stuff we left on the moon would make it long enough but would be buried so deep they might not ever be found.
2006-09-20 22:09:35 · answer #2 · answered by Don K 5 · 1⤊ 0⤋
The last traces of human existence will disappear in 5 billion years when the sun enters the red giant stage and engulfs the earth. Until then, the number of artifacts will decrease rapidly at first due to weathering and biological activity, but some items will be fossilized and will survive for eons. Really the question is what evidence from the past has survived to the present. We can extrapolate a similar survival of human artifacts into the future.
2006-09-21 02:35:57 · answer #3 · answered by d/dx+d/dy+d/dz 6 · 0⤊ 0⤋
After 100 years it would be difficult to tell that humans ever were here. Forests would grow up in our freeways, etc. I look forward to the day, perhaps 1,000 years from now, when all humans leave Earth and go and live on other planets around the galaxy. Then we can let Earth resume its prior path before we humans came into existence. Who knows? Maybe another humanoid species will arrise in another 10-20 million years or so, after we all leave. But I did hear somewhere that Twinkies are eternal.
2006-09-20 22:06:17 · answer #4 · answered by Sciencenut 7 · 0⤊ 0⤋
I know that plastic takes about a thousand years to decompose, but thats the longest, I think. Then again, most things are made from plastic.
2006-09-20 22:03:35 · answer #5 · answered by Cannibal Ox 4 · 0⤊ 0⤋
The world would take most of it back within a few hundred years. Well within a thousand years, all of the remnants of our civilization would be reclaimed. Oh Yeah, we wouldn't be missed much around the water cooler.
2006-09-20 21:58:23 · answer #6 · answered by Billy W 3 · 0⤊ 0⤋
man made radioactive material will lasts 10 of thousands of years... just look at our human evolution.... we are still finding bones of our ancestors that go back millions of years... how long will it be that any remnants of our present civilization or our bones totally disappear... i guess only a major ..major change of the earths crust would totally destroy any evidence of our existence in this blue planet and this could happen at any time... in the near of far future
gg
2006-09-20 23:32:12 · answer #7 · answered by gg 3 · 0⤊ 0⤋
10 to 20,000 years. Come back and check.
2006-09-21 00:11:12 · answer #8 · answered by Anonymous · 0⤊ 0⤋
Don't know, but that ring ding you are eating will survive a holocaust.
2006-09-20 22:04:39 · answer #9 · answered by Anonymous · 0⤊ 0⤋
nobody will be able to find out....we all be dead.....so who cares....
2006-09-20 22:22:06 · answer #10 · answered by JTB 4 · 0⤊ 1⤋