What primary components make up bronze as a metal alloy?

Bronze is primarily an alloy consisting of copper and tin, with the most common formulation typically being around 90% copper and 10% tin. This combination allows bronze to exhibit characteristics such as improved strength and corrosion resistance compared to pure copper, making it highly effective for various applications, including tools, weapons, and decorative art.

The specific ratio of copper to tin can vary, but the 90/10 composition is one of the foundational recipes that established bronze as a significant material in ancient metallurgy. This historical precedence is crucial for understanding the properties and uses of bronze in both archaeological contexts and modern applications.

The other choices feature different metals or incorrect compositions that do not align with the traditional definition of bronze, reinforcing the accuracy of the 90% copper and 10% tin formulation.