Question 1

The high electrical conductivity associated with metallic bonds is found in ____________.

Accepted Answer

A) all minerals that contain metallic ions,in any proportions 
B) minerals that have a sufficient metal content to be considered ores 
C) native metals and pure metals artificially derived from ores 
D) magnetic minerals only 
A) all minerals that contain metallic ions,in any proportions 
B) minerals that have a sufficient metal content to be considered ores 
C) native metals and pure metals artificially derived from ores 
D) magnetic minerals only C

Question 2

Mineral-rich veins within plutons,deposited by hot groundwater into fractures within the rock,characterize ____________.

Accepted Answer

A) hydrothermal deposits 
B) placer deposits 
C) residual mineral deposits 
D) sedimentary deposits 
A) hydrothermal deposits 
B) placer deposits 
C) residual mineral deposits 
D) sedimentary deposits A

Question 3

The first ores that were widely smelted by humans to produce metal were those of ____________.

Accepted Answer

A) bronze 
B) copper 
C) gold 
D) iron 
A) bronze 
B) copper 
C) gold 
D) iron B

Question 4

The ability of a metal to be bent,molded,and stretched is termed ____________.

Accepted Answer

A) tempering 
B) cold working 
C) malleability 
D) dexterity 
A) tempering 
B) cold working 
C) malleability 
D) dexterity

Question 5

The most important mineral resources,including ores,can be expected to last for the next 1,000 years.

Accepted Answer

A) True 
 B)False

Question 6

Which of the three most commonly used metals must be smelted from its ore minerals in the presence of carbon monoxide gas (from the burning of carbon-based charcoal)?

Accepted Answer

A) aluminum 
B) copper 
C) iron 
D) None of the above are correct. 
A) aluminum 
B) copper 
C) iron 
D) None of the above are correct.

Question 7

Most of the metals currently in commercial use ____________.

Accepted Answer

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 
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

Question 8

Smelting is a technique applied to ____________.

Accepted Answer

A) native metals 
B) ore minerals 
C) quarried stone 
A) native metals 
B) ore minerals 
C) quarried stone

Question 9

The high electrical conductivity associated with metallic bonds results from ____________.

Accepted Answer

A) the ability of outer electrons to move freely from atom to atom 
B) their radioactive instability 
C) the ability of nuclei to be discharged into the atmosphere 
D) their relatively great atomic mass 
A) the ability of outer electrons to move freely from atom to atom 
B) their radioactive instability 
C) the ability of nuclei to be discharged into the atmosphere 
D) their relatively great atomic mass

Question 10

Underground mining is considered the safest way to mine ore.

Accepted Answer

A) True 
 B)False

Question 11

Metals can occur in native form or in ____________.

Accepted Answer

A) oxides 
B) sulfides 
C) salts 
D) All of the above are correct. 
A) oxides 
B) sulfides 
C) salts 
D) All of the above are correct.

Question 12

Open-pit mining utilizes ore that lies close to the ground surface.

Accepted Answer

A) True 
 B)False

Question 13

___________is a common metallic alloy.

Accepted Answer

A) Copper 
B) Brass 
C) Gold 
D) Silver 
A) Copper 
B) Brass 
C) Gold 
D) Silver

Question 14

Nearly all of the minerals that are commercially exploited are either native metals or ore minerals.

Accepted Answer

A) True 
 B)False

Question 15

Which of the following is NOT an important ore of iron?

Accepted Answer

A) magnetite (iron oxide) 
B) hematite (iron oxide) 
C) pyrite (iron sulfide) 
D) All of the above minerals are important ores of iron. 
A) magnetite (iron oxide) 
B) hematite (iron oxide) 
C) pyrite (iron sulfide) 
D) All of the above minerals are important ores of iron.

Question 16

____________ are mined by the United States to alloy with iron in order to produce the special-purpose steel used in the aerospace industry.

Accepted Answer

A) Strategic minerals 
B) Reserves 
C) Native metals 
D) Nonmetals 
A) Strategic minerals 
B) Reserves 
C) Native metals 
D) Nonmetals

Question 17

Commercial ore deposits are most likely to be found associated with ____________.

Accepted Answer

A) thick basinal sandstones and shales 
B) blueschists 
C) evaporite sequences 
D) igneous rocks 
A) thick basinal sandstones and shales 
B) blueschists 
C) evaporite sequences 
D) igneous rocks

Question 18

____________ is a nonmetal mineral formed by evaporation.

Accepted Answer

A) Sulfur 
B) Gypsum 
C) Zinc 
D) Marble 
A) Sulfur 
B) Gypsum 
C) Zinc 
D) Marble

Question 19

Concrete is ____________.

Accepted Answer

A) synonymous with the term "cement" 
B) synonymous with the term "Portland cement" 
C) a combination of cement,sand,and gravel 
D) powdered rock of any lithology mixed with water and allowed to set overnight 
A) synonymous with the term "cement" 
B) synonymous with the term "Portland cement" 
C) a combination of cement,sand,and gravel 
D) powdered rock of any lithology mixed with water and allowed to set overnight

Question 20

____________ deposits form where erosion produces clasts of native metals.

Accepted Answer

A) Secondary-enrichment 
B) Placer 
C) Mississippi Valley-type (MVT) 
D) Magmatic 
A) Secondary-enrichment 
B) Placer 
C) Mississippi Valley-type (MVT) 
D) Magmatic

Exam 15: Riches in Rock: Mineral Resources

The high electrical conductivity associated with metallic bonds is found in ____________.

Mineral-rich veins within plutons,deposited by hot groundwater into fractures within the rock,characterize ____________.

The first ores that were widely smelted by humans to produce metal were those of ____________.

The ability of a metal to be bent,molded,and stretched is termed ____________.

The most important mineral resources,including ores,can be expected to last for the next 1,000 years.

Which of the three most commonly used metals must be smelted from its ore minerals in the presence of carbon monoxide gas (from the burning of carbon-based charcoal)?

Most of the metals currently in commercial use ____________.

Smelting is a technique applied to ____________.

The high electrical conductivity associated with metallic bonds results from ____________.

Underground mining is considered the safest way to mine ore.

Metals can occur in native form or in ____________.

Open-pit mining utilizes ore that lies close to the ground surface.

___________is a common metallic alloy.

Nearly all of the minerals that are commercially exploited are either native metals or ore minerals.

Which of the following is NOT an important ore of iron?

____________ are mined by the United States to alloy with iron in order to produce the special-purpose steel used in the aerospace industry.

Commercial ore deposits are most likely to be found associated with ____________.

____________ is a nonmetal mineral formed by evaporation.

Concrete is ____________.

____________ deposits form where erosion produces clasts of native metals.

Cosmology and the Birth of Earth

Journey to the Center of the Earth

Drifting Continents and Spreading Seas

The Way the Earth Works: Plate Tectonics

Patterns in Nature: Minerals

Up From the Inferno: Magma and Igneous Rock

Pages of Earths Past: Sedimentary Rocks

Metamorphism: A Process of Change

The Wrath of Vulcan: Volcanic Eruptions

A Violent Pulse: Earthquakes

Cracks, crags, and Crumples: Crustal Deformation and Mountain Building

Deep Time: How Old Is Old

A Biography of Earth

Squeezing Power From a Stone: Energy Resources

Unsafe Ground: Landslides and Other Mass Movements

Streams and Floods: The Geology of Running Water

Restless Realm: Oceans and Coasts

A Hidden Reserve: Groundwater

An Envelope of Gas: Earths Atmosphere and Climate

Dry Settings: the Geology of Deserts

Amazing Ice: Glaciers and Ice Ages

Global Change in the Earth System

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