Which of the following statements is true about why the war was so deadly? Choose all that apply. Group of answer choices Soldiers deserted the army and died in the wilderness from starvation. WWI saw the use of modern weapons, such as machine guns. Soldiers died from diseases in the trenches. Submarines killed thousands of soldiers on the Western Front.

Technology during World War I (1914–1918) reflected a trend toward industrialism and the application of mass-production methods to weapons and to the technology of warfare in general. This trend began at least fifty years prior to World War I during the American Civil War of 1861–1865,[1] and continued through many smaller conflicts in which soldiers and strategists tested new weapons.

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