They were the first life forms to evolve, and today they number in the nonillions. That's 10 with 29 zeroes after it. If that doesn't convince you of their significance in biology, perhaps the fact that you yourself are home to entire communities of the little critters will get your attention.
Neighbours on All Sides. Botswana is bordered in the South by South Africa, with many immigration checkpoints linking the two countries. In the West the country is bordered by Namibia, in the East by Zimbabwe and in the North by the Caprivi Strip of Namibia. The only geological feature of note that forms a part of a border with a neighbouring country is the Linyanti/Chobe River system in the North on the border with Namibia.
Georgia is bordered by Florida (S), Alabama (W), Tennessee and North Carolina (N) and South Carolina and the Atlantic Ocean (E). Georgia was one of the thirteen colonies that revolted against British rule in the American Revolution.