What were the effects of the ZHOU metal workers mastering iron select the two correct answers

1) The mastery of iron by Zhou metal workers allowed for the development of more durable and effective tools and weapons. Iron tools were stronger and more resistant to wear and tear compared to earlier materials like bronze. This led to improved efficiency and productivity in agriculture, craftsmanship, and warfare.

2) The mastery of iron by Zhou metal workers triggered a shift in economic and political power. Iron was more abundant and cheaper to produce than bronze, previously associated with elite social classes. As a result, iron tools and weapons became more accessible to common people, altering the social structure and redistributing power. This shift in resources and technology also contributed to political changes and the emergence of new power structures within the Zhou society.