Which technology was NOT used during WWI? 1.Chemical warfare
2.Atomic weapons
3.Machine guns
4.Tanks

B. Atomic Weapons

Explanation:

Tanks were used near  the end of WW1, with tanks such as the Renault  FT, Mark 5, and the German A7Vs. Atomic weapons weren't even a concept back then. Gas was used since 1915, invented by a German scientist trying to develop a pesticide, and Machine  guns such as the Vickers or MG08 were common in the trenches.

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