Identify the metric prefix for 10^-6.

The metric prefix that corresponds to 10^-6 is "micro." This prefix is widely used in various scientific and technical fields to denote one millionth of a unit. For example, a micrometer is one millionth of a meter, and a microgram is one millionth of a gram. The 'micro' prefix is symbolized by the Greek letter 'μ.'

In contrast, the other prefixes represent different powers of ten. "Nano" corresponds to 10^-9, "centi" refers to 10^-2, and "milli" represents 10^-3. Each of these prefixes denotes a specific fractional value, which is important for accurate measurement and communication in scientific contexts. Understanding these prefixes is essential for working with measurements and conversions in disciplines such as engineering, physics, and chemistry.