3)The majority of casualties on the Western Front were caused by artillery shells, explosions and shrapnel.
4) Great Britain and Ireland had about 600,000 casualties
6) Cats and terriers were kept by soldiers in the front line trenches to help free them of disease-carrying rats. The terriers were actually very effective in killing rats.
7)Flies were common in trenches along with trench foot which was caused because of muddy soil.
8)Lice caused headaches and trench fever and muscle pain.
That's all i can help with hoping it helps!