This statement is totally true, because Israel is considered as one of the countries that have a strong army, as a result, the Israeli army practices a lot of drills, field trainings and war scenarios in places that are close to residential areas, and of course they left all of the empty rounds and the remnants of the grenades on the ground which they are an agricultural lands by the way. This causes a sabotage to these lands that the Palestinian farmers use to farm and produce food from it, and this waste that the Israeli leave behind could cause a lot of chemical damage to our food.