# What is the SI unit used in measuring an amount of material contained in a solid sphere?

You could use the cubic meter, $\text{m"^3}$, or the cubic centimeter, $\text{cm"^3}$.
Volume is a derived SI quantity with the unit, $\text{m"^3}$. However, most problems asking for the volume of a sphere give the radius in centimeters, $\text{cm}$, which would mean the volume would be in $\text{cm"^3}$.