What temperature scale is used in a metric system?

Hint: To solve this problem study about the metric system and units of different basic units in the metric system. Metric system is the system that is used in measuring basic physical quantity length, volume, distance, temperature, and weight. It relies on the three basic units through which anything in the world can be measured.

Complete answer:
We know that the Metric system uses three basic units through which any quantity can be measured. The basic units that are used in the metric system are:
1) Metre() - It is used for measuring length
2) Kilogram (\[kg\]) - It is used for measuring mass
3) Second(\[s\]) - it is used for measuring time.

Hence, the basic unit of measurement of temperature in a metric system is degree Celsius (\[{}^ \circ C\]) or Kelvin (\[K\]).

Additional information: The metric system of measurement was created in the year \[1799\]. Over several years, this system has been updated to measure many different units.Though, a number of systems with similar basic physical quantities but different units originated in the late \[19th\] and early \[20th\] century. The term metric system is another word for SI or the International systems of units.

SI Unit Metric System or the International System of Units (SI Units) have set the definition for meter, kilograms, and the seconds. It also defines and states four different additional units as basic physical units, which are: Candela - Luminous intensity, Ampere- Electric Current, Kelvin-Temperature, Mole - Material Quantity.

Note:The basic units are those physical quantities which cannot be expressed in terms of other physical quantities. Any other physical quantity can be expressed in terms of the basic quantities. The metric system uses the unique physical quantities that are recognized by nature most uniquely. The length: represents the space in nature, time: perception of separation between events, mass: matter present in a physical object.