Archaeology, being the study of human history, can bring great advantages like increasing our knowledge about our ancestors. It can teach us about the way humans used to live, which is rather interesting. The disadvantages can lead to something called "destructive process". The article titled "What are advantages and disadvantages of archaeology" says the following based on destructive process, "When excavating a site the archeologist is essentially destroying it. Sure, large structural remains such as foundations are often left intact, but generally when a site has been excavated, it’s gone forever."
I'm sorry that my response is a bit too long, but I hope I helped.
