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A canvas mask has glass lenses to see through and attached tubing near the mouth area.

What new technology during World War I led to the development of the piece of equipment shown here?

A.
the machine gun

B.
poison gas

C.
submarines

D.
nuclear weapons

A canvas mask has glass lenses to see through and attached tubing near the mouth area-example-1
User DashRantic
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1 Answer

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Poison Gas, it’s used to breathe through the gas
User Lewis Morris
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