Me asap with these two questions about wwi 20 points will be rewarded.1. what is the significance of the battle of somme? 2. how many years into the war did it take for germany to use poison gas on a large-scale?

the battle of the somme started on july 1st 1916. it lasted until november 1916. for many people, the battle of the somme was the battle that symbolized the horrors of warfare in world war 1.   the germans didn't use it on a large scale till 1915.