Question

........ Is used to keep a watch on the ground from an underground bunker

Answer 1

Black houses which are mostly used to keep a watch on the ground from an underground bunker.

• Bunkers are built mostly underground. Black houses are extensively used in World War 1, and 11.

• Bunkers can also be used as safety from tornadoes.

• Bunkers designed for large ground shocks. These are used to protect inhabitants from the walls and floors.

• Underground bunkers doors must be strong as the walls.

Answer 2

A black house is used to keep a watch on the ground from an underground bunker.  

Explanation:

• Black houses are basically bunkers built for the purpose of keeping a watch on the ground. They are built underground. They came to existence during world wars especially during the second, used for control centres, command, and weapon storage.
• They are designed in such a way that it serves the purpose of safety from tornadoes and any missiles along with providing a safe place for a secret hideout. These are made for large ground shocks that protect the inhabitants from the walls and doors thus the later must be enough tough.

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