Which statement best describes how machine guns were used during world war i? a. to attack tanks
b. to defend against mustard gas
c. to attack aircraft
d. to defend territory

The correct answer is D. To defend territory.

Machine guns were used during world war 1 to defend territory.

The early part of the war they used airship. Many other machine guns which were used included poison gas, aircraft, mortars, artillery, flamethrowers and machine guns like Maxim MG 08, Tanks like mark v tank, Forter Triplane were known as the deadliest weapon which are used.

(202 bc - 220 ad) dynasty started by lui bang; a great and long-lasting rule, it discarded the harsh policies of the qin dynasty and adopted confucian principles; han rulers chose officials who passed the civil service exams rather than birth; it was a time of prosperity

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