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WAEC GCE BIOLOGY (3ai)Variation Is The differences in characteristics between individuals of the same species. (3aii) (i)Crime Detection ii)Blood transfusion (iii)determination of patenity (iv)in medicine (v)in agriculture (vi)classification of human...

Chemistry 1-10 CBABC BAADA 11-20 ABABA CDDDC 21-30 AACBA CCBDB 31-40 AADCA DBBDA 41-50 ADBAB CBABC  

1a) i)Atom can neither be created nor destroyed,furthermore, Atoms cannot be divided into smaller particles ii)All matter is made up of tiny ,indivisible particles called atoms iii)Atoms of different elements...