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Answer:
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.
the answer is.. The age of exploration beginning in 1400s led to long term population increase
Answer:
is where the prices of good and services are determined through a free system
Injustice motivates the king by causing them to do less effort