Which pair correctly lists the prefixes for billions and billionths?

Which pair correctly lists the prefixes for billions and billionths?

• A. G and n
• B. Giga and Nano
• C. Mega and Micro
• D. Kilo and Milli

Answer: (B)

Giga- represents a billion (10^9) and nano- represents a billionth (10^-9). Those are the prefixes that match billions and billionths, respectively. Therefore, the pair that lists these prefixes is Giga and Nano. To see it in practice, a gigabyte (GB) is 10^9 bytes, and a nanometer (nm) is 10^-9 meters. The other options mix prefixes that correspond to different magnitudes: Mega and Micro are million (10^6) and millionth (10^-6), while Kilo and Milli are thousand (10^3) and thousandth (10^-3). So only Giga and Nano line up with billions and billionths.

Giga- represents a billion (10^9) and nano- represents a billionth (10^-9). Those are the prefixes that match billions and billionths, respectively. Therefore, the pair that lists these prefixes is Giga and Nano. To see it in practice, a gigabyte (GB) is 10^9 bytes, and a nanometer (nm) is 10^-9 meters. The other options mix prefixes that correspond to different magnitudes: Mega and Micro are million (10^6) and millionth (10^-6), while Kilo and Milli are thousand (10^3) and thousandth (10^-3). So only Giga and Nano line up with billions and billionths.