Final answer:
Greek metric prefixes denote amounts that are smaller than the base unit, suitable for expressing very small quantities. The correct answer is (a) Smaller, with examples including prefixes like centi-, milli-, and micro-.
Step-by-step explanation:
Greek is used for metric prefixes that are smaller than the base unit.
Metric prefixes are used to make the units manageable in the metric system. They are based on factors of 10, with some examples being milli- (0.001) and micro- (0.000001).
For example, if we have a length measurement of 10 meters, we can use the prefix milli- to represent the same length as 10,000 millimeters, which is smaller than the base unit of meters.