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Mechanical disadvantage occurs if the load distance is greater than the effort distance, then the effort required is more than the load being moved. It is also known as a 'negative mechanical advantage'.
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Well, one advantage would be beautiful wilderness. Another would be government insurance. A major disadvantage if you are older is that same insurance. One disadvantage is the lack of jobs, but that seems to be getting better.
The main disadvantage of the Triple-Entente was that because of this alliance between Russia, France and Great Britain, it helped cause the first World War.