Snake holes are:
A. Vertically drilled holes.
B. More of less horizontally drilled holes at the foot of a high bench.
C. Inclined drilling holes.
D. Vertically drilled holes with two lateral openings.
Answer:B
Snake holes are:
A. Vertically drilled holes. B. More of less horizontally drilled holes at the foot of a high bench. C. Inclined drilling holes. D. Vertically drilled holes with two lateral openings.