Will we run out of elements in 100 years?
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The ice age. Why it was exist 20 000 years ago but now it is not exist?
Started by RRRBoard Geology, Palaeontology & Archaeology |
Replies: 8 Views: 19710 |
02/06/2007 05:24:09 by Bass |
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Did the Azolla Event 49 Million Years Ago Create an Extinction Event?
Started by AutumnBisonBoard The Environment |
Replies: 0 Views: 3284 |
14/03/2019 15:15:07 by AutumnBison |
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The evolution of man "Homo Sapiens" 200 thousand years into the future
Started by Alan McDougallBoard Plant Sciences, Zoology & Evolution |
Replies: 6 Views: 20072 |
18/11/2008 18:57:49 by Alan McDougall |
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Why do group 7 elements become less reactive as you go down the group?
Started by jaredBoard General Science |
Replies: 2 Views: 7037 |
12/02/2009 23:39:37 by Chemistry4me |
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can you write these elements up to down ..from more reactive to less reactive |
Replies: 2 Views: 4862 |
22/06/2014 16:33:38 by chiralSPO |