Respuesta :
Answer:
A.substance made of atoms of two or more elements
Explanation:
Well since itâs a chemical bonding of two chemicals yeah Iâd say itâs A since
B: not a shell
C:maybe but Iâm not too sure
D: not a mixture of METALS
B: not a shell
C:maybe but Iâm not too sure
D: not a mixture of METALS