How long can human beings live on the earth?

2014-03-28 3:26 am

回答 (2)

2014-03-29 12:33 pm
✔ 最佳答案
An average human life span today is around 70. No one knows for sure how long they are going to live. As a species they will exist for as long as the planet Earth is hospitable.
2014-03-29 5:50 am
it seems every great society shogunned.
greece and high culture. Aztec Maya
atlantis,,so i guess it depends on balance


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