The attack of last Thursday evening was preceded by the rising of a cloud of vapor, greenish gray and iridescent. That vapor settled to the ground like a swamp mist and drifted toward the French trenches on a brisk wind.Its effect on the French was a violent nausea and faintness, followed by an utter collapse. It is believed that the Germans who charged in behind the vapor, met no resistance at all, the French at their front being virtually paralyzed. - New York Tribune, April 27,1915 What does this account of the front lines of World War I describe? A. the use of poison gas during battle B. the use of atomic weapons in the field C. the effects of disease in the trenches D. the effects of shell shock on soldiers (C) 2025 Renaissance I earning, InC. All rights reserved.

## Step 1<br />The problem presents a historical account from the New York Tribune dated April 27, 1915. The account describes a cloud of vapor, greenish gray and iridescent, that settled to the ground like a swamp mist and drifted towards the French trenches. The vapor caused violent nausea, faintness, and utter collapse among the French soldiers, rendering them virtually paralyzed.<br /><br />## Step 2<br />The account does not mention the use of atomic weapons, the effects of disease in the trenches, or the effects of shell shock on soldiers. Instead, it describes the effects of a chemical weapon, which is consistent with the historical use of poison gas during World War I.<br /><br />## Step 3<br />The description of the symptoms and the effects of the vapor align with the known effects of poison gas, which was a common chemical weapon used during World War I. The symptoms described, such as violent nausea, faintness, and utter collapse, are consistent with the effects of poison gas.