was ww1 worth it?

We have been studying historical events involving World War I. This assignment has two parts and will demonstrate your ability to evaluate the impact of WW I. Consider the type of warfare, the conditions of soldiers, the resources used, the successes, what was gained by the victors and the lasting effect. In your opinion was WW1 worth it?

Part One: To establish your own opinion on WW I and the wars effect on the human body and mind.
Part Two: Write a 400-500 word persuasive essay, which explains your evaluation and provides supporting evidence.