nonrenewable resources will eventually be depleted
poorness is not fruitlessness. unproductiveness is fruitlessness. if_supply_depleted has none_available unproductiveness is not fruitlessness. computer_redundant_power_supply is not uninterruptible_power_supply. if_supply_depleted has not none_available poorness is fruitlessness. exhaustion is not depletion. coal is not non_renewable_resource. non_resealable_storage_can is not can.