Answer:
https://encyclopedia.1914-1918-online.net/article/raw_materials
https://www.khanacademy.org/humanities/whp-origins/era-7-the-great-convergence-and-divergence-1880-ce-to-the-future/71-world-war-1-betaa/a/read-world-war-i-a-total-war-beta
Explanation:
Hope these articles help, I know It's not the best, but no problem. (DW either, they're completely safe sites)
