jahnifah
jahnifah jahnifah
  • 14-10-2018
  • Biology
contestada

what's number 2? , and how much atmospheric nitrogen can plants procees and humans , if u want to give me the answer to the others ur welcome

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15edwardz
15edwardz 15edwardz
  • 14-10-2018
what do you mean by number 2? if you mean #2 of the periodic table of elements then it's helium
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