Question

How was the archaeologist able to know that there is a megalith under the surface of the earths

Answer 1

Hey mate here is your answer

with help of metal detectors or digging soil will help to find megalith under the earth.

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Answer 2

The many geophysical techniques exist, archaeologists generally make use of 4.

1 Megnetic gradiometry

2 Earth resistance

3 Ground penetrating radar (GPR)

4 Megnetic Susceptibility.

Each technique measures some aspect of the ground below the surface.

Hope it helps you.

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