Answer:
World War I changed the way wars were fought because of the widely known trench warfare. Because troops inside the trenches were much more protected than troops outside, it led to much more prolonged battles.
Answer:
a. The "A" items are of high dollar volume
Explanation:
<span>Nationalism is an extreme form of patriotism and loyalty to one’s country. Nationalists place the interests of their own country above the interests of other countries. Nationalism was prevalent in early 20th century Europe and was a significant cause of World War I. Most pre-war Europeans believed in the cultural, economic and military supremacy of their nation. </span>
<span>There were global consequences for WWI, because it included more countries than any previous war, it also resulted on more deaths than any previous war. WWI caused the decay of monarchies and rise of fascism. WWI also changed the face of modern warfare by implementing tanks, submarines, airplane-dropped bombs, machine guns, and poison gas.</span>