Answer : The correct option is, Mass and volume.
Explanation :
Density : It is defined as the mass of a substance contained per unit volume.
The unit of mass is gram (g) and the unit of volume is milliliter (ml). So, the unit of density is g/ml.
Formula used :
![Density=(Mass)/(Volume)](https://img.qammunity.org/2020/formulas/chemistry/middle-school/hzknnknzlihjnnp7o4jwkew5bpcuhffxxx.png)
For example : If mass of object is 550 grams and volume of water displaced 25 ml. Calculate the density of an object.
By using formula, we get:
![Density=(550g)/(25ml)=22g/ml](https://img.qammunity.org/2020/formulas/chemistry/middle-school/gg4uvf7qqekrniraass5x4tmnikt3zpa4h.png)
Thus, density of the object will be 22 g/ml
Hence, the mass and volume measurements are needed in order to calculate the density of a given object.