What prefix represents 10 times the base unit in the metric system?

The correct answer is associated with the prefix "Deca-," which indeed signifies a factor of ten times the base unit in the metric system. This prefix is used to denote quantities that are ten times larger than the standard unit, providing a straightforward method for scaling measurements. For instance, one decameter equals ten meters.

Understanding the metric system is crucial for scientific measurements, as it is based on powers of ten, facilitating calculations and conversions. In contrast, the other prefixes represent different values: "Deci-" indicates one-tenth of a base unit, "Centi-" indicates one-hundredth, and "Hecto-" signifies one hundred times the base unit. Each of these prefixes serves a unique purpose in helping to convey precise measurements across various contexts in science.