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3 answers

Kola Superdeep borehole

12262 Meters

7.6 miles

Started 24 My 1970

Completed 1989

en.wikipedia.org/wiki/Kola_Superdeep_Borehole

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2007-03-20 04:23:48 · answer #1 · answered by SAMUEL D 7 · 1 0

The Soviets drilled to 40,000 feet in the Kola Peninsula

2007-03-20 11:19:53 · answer #2 · answered by Garrett J 3 · 1 0

yes because of the gravity of the earth!!

2007-03-24 04:00:58 · answer #3 · answered by Jan Richard O 1 · 0 0

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