Direction: Read the given passage and answer the following questions.

Metallurgy, the science and technology of metals, is a field that has been vital to human civilization for thousands of years. It involves the extraction, refining, and processing of metals to create materials with desirable properties for various applications. The history of metallurgy dates back to ancient times when early humans discovered how to extract metals from ores and shape them into tools and ornaments. This practice evolved significantly with the advent of the Bronze Age and later the Iron Age, leading to advancements in weaponry, construction, and machinery. Modern metallurgy encompasses a wide range of techniques, including alloying, heat treatment, and surface engineering, to enhance the properties of metals such as strength, ductility, and corrosion resistance. Key processes include smelting, where raw ores are heated to separate metal from impurities, and casting, where molten metal is poured into molds to form specific shapes. Metallurgists also study the microstructure of metals to understand and manipulate their properties at the atomic level. Innovations in this field have led to the development of high-performance materials used in aerospace, automotive, and electronics industries. The ongoing research in metallurgy aims to create materials that are lighter, stronger, and more sustainable, driving progress in various technological fields.