1.

What is the range of depth of most Hydro thermal wells?

A. 600 – 2100m
B. 50 – 60 m
C. 8 – 10 km
D. 1200 – 5400m
Answer» B. 50 ‚Äö√Ñ√∂‚àö√ë‚àö¬® 60 m


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