Which metric prefix would you most likely use to measure a very large quantity?

• A. milli-
• B. mega-
• C. kilo-
• D. micro-

Answer: (B)

Verified step by step guidance

1. Understand that metric prefixes are used to express quantities that are either very large or very small by scaling the base unit by powers of ten.
2. Recall that 'milli-' corresponds to \$10^{-3}$, which is used for very small quantities (one-thousandth of a unit).
3. Recognize that 'micro-' corresponds to \$10^{-6}$, which is even smaller (one-millionth of a unit).
4. Know that 'kilo-' corresponds to \$10^{3}$, which is used for large quantities (one thousand units).
5. Identify that 'mega-' corresponds to \$10^{6}$, which is used for very large quantities (one million units), making it the most appropriate prefix for measuring very large quantities.