Which of these was an effect of mughal nobility not being hereditary?

Since the Mughals did not have any definite law of succession, after the death of each emperor, a bloody war for the throne ensued amongst his sons, and each one, in turn, used nobles and members of the royal family to their own advantage, which then divided the nobles, and had them fighting for their self-interest only. The result of this was anarchy, and this ultimately made the  Mughal weak and vulnerable.

The answer is william henry harrison pursued and defeated british forces retreating into canada.