Question

the correct multiplier for the prefix micro is: 10^6 10^3 10^-9 10^-6 none of the above

Explanation:

The prefix "micro" in the International System of Units (SI) represents a multiplier of $10^{- 6}$. It is used to denote a very small quantity. For example, a micrometer ($\mu m$) is $10^{-6}$ meters.

Answer:

$10^{-6}$