Metals and Mining sector

6. What is the process of converting iron ore into iron called?
a) Refining
b) Smelting
c) Milling
d) Sintering

7. Which metal is primarily used for making aircraft bodies?
a) Copper
b) Aluminum
c) Iron
d) Titanium

8. What is the process of removing impurities from a metal called?
a) Refining
b) Smelting
c) Milling
d) Alloying

9. Which metal is commonly used for making jewelry due to its malleability and resistance to corrosion?
a) Gold
b) Silver
c) Platinum
d) Copper

10. What is the process of heating ore to a high temperature in the absence of oxygen called?
a) Refining
b) Smelting
c) Milling
d) Roasting