(D) For $I) 0.0063$: Leading zeros are not significant. The significant figures are $6$ and $3$. Total = $2$.For $II) 132.00$: Trailing zeros in a num

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(D) For $I) 0.0063$: Leading zeros are not significant. The significant figures are $6$ and $3$. Total = $2$.For $II) 132.00$: Trailing zeros in a number with a decimal point are significant. Total = $5$.For $III) 1004$: Zeros between non-zero digits are significant. Total = $4$.Therefore,the number of significant figures is $2, 5, 4$.