Effects of wars:
1. due to war, forests are depleted for making weapons. sometimes forests are also cut down for the country shouldn't be fell into the hands of enemies. the first effect is deforestation.
2. great depression in america, therefore second effect is economical problem
3. loss of life
4.loss of agriculture. example hiroshima nakasaki is the place which is destroyed in first world war because of bomb blast of america. now there is no source of agriculture and many affected by diseases.