What modern technology helps archaeologists locate objects buried underground?

Of the many geophysical techniques that exist, archaeologists generally make use of four: magnetic gradiometry, earth resistance, ground penetrating radar (GPR) and magnetic susceptibility. Each technique measures some aspect of the ground below the surface. By taking many readings on a regular grid and plotting the results, information about the archaeological site can be gained without having to dig it up.

Explanation:

macon. i believe thats the answer

sorry if im wrong.

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