An important factor that prevented the ancient greek city-states from uniting to form a single nation

This passage says that the government is necessary because . the passage states that checks and balances are needed to

Which one of these were common aspects of war efforts during world war 1 1. rationing 2. war bonds 3. using schools as military facilities 4. child soldiers 5. women working in factories circle all that apply

Which of these rose during the great depression?