Question

It was at first impossible for any one to realize what had actually happened. The smoke and fumes hid everything from sight, and hundreds of men were thrown into a comatose or dying condition, and within an hour the whole position had to be abandoned, together with about fifty guns. —British Field Marshal Sir John French, report on the second battle of Ypres, 1915 What caused the scene described in this excerpt?

Answer 1

The use of a poisonous chlorine gas.

Step-by-step explanation:

Chemical weapons are used to hurt or kill due to their toxic chemical substances, without a destructive explotion.

Those were used in the first world war on the second battle of Ypres on April 22, 1915 by the German army.