Question

why are the archaeologists digging up the site?
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Answer 1

Answer:

excavate only when there is a threat of destruction or when they may reveal vital information about past cultures.

Explanation:

Archaeology is a destructive science—meaning that once a site is excavated, it is gone forever. ... For these reasons, archaeologists generally excavate only when there is a threat of destruction or when they may reveal vital information about past cultures. And they usually excavate only a small part of any site.