Homology Groups of a CW-complex

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We have the following CW-complex inside a Complex Projective space:

One $0$-cell,

Three $2$-cells A,B,C. Their closure is made by adding the $0$-cell,

Three $4$-cells. The closure of the first one is made by adding A,B and the $0$-cell, the closure of the second one is made by adding A,C and the $0$-cell, the closure of the third one is made by adding B,C and the $0$-cell,

One $6$-cell, its closure is made by adding everything listed above.

We want to know:

$1)$ Can I deduce this is not a smooth variety since there are three $2$-cells attached to a single $0$-cell?

$2)$ Can I deduce the homology groups with coefficients in $\mathbb Q$? I don't understand if their dimensions listed from bottom to top only in even degrees are $(1,0,0,1)$ or $(1,3,3,1)$.

Thanks!