I helped by everyone being in a safe environment.
They both grew maize which is corn.
Answer:
Mass and density
Explanation:
Density of an object is defined as its mass per unit volume. Mathematically, the relation is given by :

m = mass and V = volume
If we know the density of the Eraser and its mass, we can easily find its volume. Hence, the two tools are mass and density.
Hitler and other leaders accused Jews, poles and Chinese of starting a World War.