Multiple Choice
Most of the metals currently in commercial use ____________.
A) were known to the ancients
B) are found only in North America and Asia
C) were discovered during the last two centuries
D) are excavated as native metals and do not require smelting
Correct Answer:
Verified
Correct Answer:
Verified
Q2: Mineral-rich veins within plutons,deposited by hot groundwater
Q5: The most important mineral resources,including ores,can be
Q6: Which of the three most commonly used
Q8: Smelting is a technique applied to _.<br>A)native
Q10: Underground mining is considered the safest way
Q11: Metals can occur in native form or
Q12: Open-pit mining utilizes ore that lies close
Q25: The first ores that were widely smelted
Q28: The high electrical conductivity associated with metallic
Q52: The ability of a metal to be