The atomic bomb
Hope this helped
The Albany Plan of Union was meant to unite the thirteen colonies into a union with a federal government. It was the predecessor of the Articles of Confederation. It was meant to address the issues of taxing and protection of colonies. It wasn't well received since the colonists were still afraid of a central taxing institution and were on the verge of a war.
They were able to grow their own food which was a plus for them since the rainfall helped increase their chances of getting food. Hopefully, this helps you. ^^