hardest substance in the world
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Answered by
2
titanium and bones are hardest substances in world.
Answered by
1
wurtzite boron nitrid & londalite
prachee2:
which is comes from metiorites
titanium too
ohooo
haaaaaa
my ans is also right okay!
oh
ur answer is also right and thanx for ur answer.
yr not wel
:-)
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