The two correct answers regarding the effects of the Zhou metal workers mastering iron are:
- iron made stronger, more effective farm tools and increased crop yield
- iron weapons spread to the masses, contributing to the Warring States period
What were the effects of the Zhou metal workers mastering iron? Select the two correct answers.
- the Zhou conquered the warlords and were the first to unify China
- iron made stronger, more effective farm tools and increased crop yield
- iron weapons spread to the masses, contributing to the Warring States period
- the Zhou jealousy guarded the secret of smelting the iron and created a trading empire
- Zhou craftsman are known for their iron art and it is still sold today
- iron helped the Zhou rulers so much that they reserved the Mandate of Heaven for themselves alone.
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