The British never took the revolutionary war and they never tried to win the heart of the colonies by their policies and this was the way the British leaders misunderstood the revolutionary war. The British had to pay the ultimate price of giving the colonies their independence because of this misunderstanding.
The Battle of Britain was the first major campaign to be fought entirely by air forces, and was also the largest and most sustained aerial bombing campaign to that date. The Battle of Britain marked the first defeat of Hitler's military forces.
Innovations in farming. The Black Plague , Magna Carta, and the crusades all helped lead to the downfall.
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.
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