Metal is known to be the main thing that they believed to be used in order to achieve longevity. As per Chinese Alchemy, they believe that the use of gold and cinnabar is the main factor that can be used in order to acquire longevity once used.
Answer:
The production of stocks.
customer service skills .
They work with people either in phone or directly with them as costumers. Hence, working with people will be the answer
If you're referring to the militarization and aggression of Germany, there's a lot of debate as to why these nations didn't intervene earlier. The general consensus is that nobody believed Germany would take it as far as they did.