Question

how many sig figs are there? 1000000000

Explanation:

Significant figures (sig figs) rules: Trailing zeros in a whole number without a decimal are not significant unless indicated. For \(1000000000\), only the leading \(1\) is significant; the trailing zeros are placeholders. So there is \(1\) significant figure.

Answer:

B. 1 (assuming the purple option with "1" is option B, adjust identifier if needed)