Answer
a. Length
b. Mass
c. Temperature
d. Volume
Work Step by Step
a. 15 Km - It indicates " Distance".
So the type of measurement used is "Length."
b. 12 kg-- It indicates Weight.
So type of measurement is " Mass."
The mass of an object is a measure of the quantity of material it contains. The SI unit of mass is the kilogram (kg).
c. 30 ° c - > " Temperature ".
d. 2 Liters - > It indicates Volume.