Which prefix corresponds to 0.000000001?

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Multiple Choice

Which prefix corresponds to 0.000000001?

Explanation:
Grasping how metric prefixes indicate small powers of ten helps decode numbers quickly. The value 0.000000001 is 1 × 10^-9. The prefix that denotes 10^-9 is nano-, used in terms like nanometer or nanosecond. So 0.000000001 of a unit is 1 nano-unit. The other prefixes shown correspond to larger scales: milli is 10^-3, centi is 10^-2, and micro is 10^-6, none of which match 10^-9. Hence the correct prefix is nano-.

Grasping how metric prefixes indicate small powers of ten helps decode numbers quickly. The value 0.000000001 is 1 × 10^-9. The prefix that denotes 10^-9 is nano-, used in terms like nanometer or nanosecond. So 0.000000001 of a unit is 1 nano-unit. The other prefixes shown correspond to larger scales: milli is 10^-3, centi is 10^-2, and micro is 10^-6, none of which match 10^-9. Hence the correct prefix is nano-.

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