Final answer:
The effects of the poison gas used by the Germans were severe, causing violent nausea, faintness, collapse, and in some cases, death among the French soldiers.
Step-by-step explanation:
According to the reporter Will Irvin, the effects of the poison gas used by the Germans against the French soldiers near Ypres were severe and destructive. Soldiers suffered from violent nausea and faintness, leading to utter collapse. Some of those affected died from the aftereffects of the gas exposure. The gas used in this attack was described as a gaseous vapor, greenish gray and iridescent, that settled to the ground and moved towards the French trenches, rendering the soldiers virtually paralyzed and unable to resist the subsequent German charge.