What effect did the use of trenches and new technologies during world war i have?

A. Warfare was far deadlier than in the past and resulted in enormous casualties

Explanation:

No one would have dared to predict the casualties of World War I. When World War I was declared there were street celebrations in most of Europe’s capital cities. No one even envisaged trench warfare in August 1914 let alone the appalling casualties that occurred over 4 years of fighting. No one could have predicted the horrifying consequences of modern weaponry being used together with out-of-date tactics. The grim figures ‘speak’ for themselves. The estimated number of people killed during World War I varies from 8.5 to 12.0 million.

affirmative action refers to the policies that take gender, race, or ethnicity into account in order to promote equal opportunity.

employers subject to title vii are prohibited from taking race or sex into account in any employment decisions. aa is a penalty for having any job group substantially statistically "underutilized" in any race or either sex. the employer must take steps to eliminate the underutilization, then stop, ending its aa efforts

a phrase from a poem by ralph waldo emerson about the battle of lexington and concord. emerson's words read, “here once the embattled farmers stood / and fired the shot heard round the world.”