French and Indian war (also known as the seven years war), led tensions between the 13 colonies and Britian. This is because in this war france lost New France to the British. When taxes began to rise in the colonies and Americans were starting to rebel, French were happy to help since it would be a sort of revenge since losing their colony in North America.
The coastal plains are fairly humid and get a lot more rain than the desert parts of the state. The Mountains/Basins are the driest, hottest climate. This region gets very little rain and is very rocky.