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Yakvenalex [24]
2 years ago
11

1 down deep narrow hole in the ground is used for protection

History
1 answer:
BARSIC [14]2 years ago
8 0

Answer:

Good morning ur answer is here

Explanation:

<em>Trenches 5 feet (1.5 meters) deep or greater require a protective system unless the excavation is made entirely in stable rock. If less than 5 feet deep, a competent person may determine that a protective system is not required.</em>

<em>Happy </em><em>hobi </em><em>day </em><em>.</em><em>.</em>

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