What are the basic prefixes used in the metric system and how do they relate to the size of the base unit?

Answer:

The basic metric prefixes include kilo-, hecto-, and deka-, which represent 1,000, 100, and 10 times the base unit. The base unit is the reference size. The prefixes deci-, centi-, and milli- represent one-tenth, one-hundredth, and one-thousandth of the base unit.