Earth's deepest borehole is located in northern ____ and extends to a depth of 12 kilometers.
A) China
B) Russia
C) Iceland
D) Canada

Question

Quizplus · Accepted Answer

The deepest borehole on Earth is known as the Kola Superdeep Borehole and is located in Russia, specifically in the Pechengsky District of the Murmansk Oblast. It was drilled by the Soviet Union in the 1970s and 1980s and extends to a depth of 12.26 kilometers (7.6 miles).

Earth's Deepest Borehole Is Located in Northern ____ and Extends