Question

which technological advancement made it easier for a small number of soldiers to repel a much larger force when defending trenches during world war i? a. tanks b. machine guns c. airplanes d. poison gas

Explanation:

Machine guns could fire a large number of bullets in a short time. This allowed a small number of soldiers in trenches to create a high - volume of fire that could repel a much larger attacking force. Tanks were more for offensive operations (breaking through enemy lines), airplanes were mainly for reconnaissance and some bombing early in the war, and poison gas was a weapon of mass destruction that affected both sides in a more indiscriminate way (not specifically about repelling a larger force in trench defense as effectively as machine guns).

Answer:

B. Machine guns