Question 1

Metamorphic rocks are produced when rocks are

Accepted Answer

A)  chemically weathered. 
B)  recrystallized by heat and pressure. 
C)  physically broken down. 
D)  melted in the mantle and recrystallized. 
E)  recrystallized through chemical processes. 
A)  chemically weathered. 
B)  recrystallized by heat and pressure. 
C)  physically broken down. 
D)  melted in the mantle and recrystallized. 
E)  recrystallized through chemical processes. B

Question 2

__________ rocks are often the source of metal ores such as gold, silver, and copper.

Accepted Answer

A)  Igneous 
B)  Metamorphic 
C)  Sedimentary 
D)  Weathered 
E)  All of these are sources of metal ores. 
A)  Igneous 
B)  Metamorphic 
C)  Sedimentary 
D)  Weathered 
E)  All of these are sources of metal ores. B

Question 3

The "ring of fire" is the source of more earthquakes and volcanic activity than any other place on earth. What causes the ring of fire?

Accepted Answer

A)  the subduction of Pacific plates under continental plates 
B)  the drift of Europe and Africa away from the Americas 
C)  the collision of two continental plates 
D)  mid-oceanic ridges 
E)  the conduction currents in the hot magma. 
A)  the subduction of Pacific plates under continental plates 
B)  the drift of Europe and Africa away from the Americas 
C)  the collision of two continental plates 
D)  mid-oceanic ridges 
E)  the conduction currents in the hot magma. A

Question 4

Evaporites, formed from ___________, are important economically because they are often found at or above 97% purity and are __________.

Accepted Answer

A)  igneous rocks; important due to their strength, lightness, and malleability 
B)  metamorphic rocks; important due to their strength, lightness, and malleability 
C)  sedimentary rocks; important due to their strength, lightness, and malleability 
D)  igneous rocks; therefore concentrated in economically recoverable levels 
E)  sedimentary rocks; therefore concentrated in economically recoverable levels 
A)  igneous rocks; important due to their strength, lightness, and malleability 
B)  metamorphic rocks; important due to their strength, lightness, and malleability 
C)  sedimentary rocks; important due to their strength, lightness, and malleability 
D)  igneous rocks; therefore concentrated in economically recoverable levels 
E)  sedimentary rocks; therefore concentrated in economically recoverable levels

Question 5

A giant sea swell known as a tsunami is caused by

Accepted Answer

A)  typhoons. 
B)  earthquakes. 
C)  lunar gravity. 
D)  unusual tides combined with seasonal storms. 
E)  a strong wave during an exceptionally high tide. 
A)  typhoons. 
B)  earthquakes. 
C)  lunar gravity. 
D)  unusual tides combined with seasonal storms. 
E)  a strong wave during an exceptionally high tide.

Question 6

Why would the environmental degradation associated with mining be a low priority for a less-developed country?

Accepted Answer

A)  The country relies on the export of a mineral for the majority of their foreign exchange. 
B)  Both consumers and producers depend on the minerals so much that environmental consequences are of less importance. 
C)  Less-developed countries are more likely to import minerals so environmental degradation is not as important to them. 
D)  The environmental impact of mining is low. 
E)  Environmental degradation is usually not a priority for less-developed countries. 
A)  The country relies on the export of a mineral for the majority of their foreign exchange. 
B)  Both consumers and producers depend on the minerals so much that environmental consequences are of less importance. 
C)  Less-developed countries are more likely to import minerals so environmental degradation is not as important to them. 
D)  The environmental impact of mining is low. 
E)  Environmental degradation is usually not a priority for less-developed countries.

Question 7

A major environmental implication of the quest for more gold at lower concentrations in the ore compared to higher concentrations is that

Accepted Answer

A)  about the same amount of toxic gas is released from digging out the gold. 
B)  less waste rock is produced. 
C)  less material has to be moved to get to the gold. 
D)  more carbon dioxide is released as the gold is mined. 
E)  more material has to be moved to get to the gold. 
A)  about the same amount of toxic gas is released from digging out the gold. 
B)  less waste rock is produced. 
C)  less material has to be moved to get to the gold. 
D)  more carbon dioxide is released as the gold is mined. 
E)  more material has to be moved to get to the gold.

Question 8

Which of the following countries is not a principle consumer of crucial metals?

Accepted Answer

A)  United States 
B)  France 
C)  Japan 
D)  China 
E)  Russia 
A)  United States 
B)  France 
C)  Japan 
D)  China 
E)  Russia

Question 9

The United States keeps large stockpiles of bauxite to ensure a supply of aluminum. This is an example of

Accepted Answer

A)  economic geology. 
B)  an evaporite. 
C)  a strategic metal. 
D)  a metal consumed in South America. 
E)  a mineral from a less-developed country. 
A)  economic geology. 
B)  an evaporite. 
C)  a strategic metal. 
D)  a metal consumed in South America. 
E)  a mineral from a less-developed country.

Question 10

Smelting releases metals from ore.

Accepted Answer

A) True 
 B)False

Question 11

What gas is released in the process of smelting?

Accepted Answer

A)  carbon monoxide 
B)  chlorine 
C)  sulfur dioxide 
D)  ammonia 
E)  carbon dioxide 
A)  carbon monoxide 
B)  chlorine 
C)  sulfur dioxide 
D)  ammonia 
E)  carbon dioxide

Question 12

________ in the mantle and core make tectonic plates move.

Accepted Answer

A)  Conduction movements 
B)  Earthquakes 
C)  Radioactive decay 
D)  Convection currents 
E)  Concurrent currents 
A)  Conduction movements 
B)  Earthquakes 
C)  Radioactive decay 
D)  Convection currents 
E)  Concurrent currents

Question 13

The physical breakdown of a rock into smaller pieces is called

Accepted Answer

A)  the rock cycle. 
B)  sedimentation. 
C)  chemical weathering. 
D)  mechanical weathering. 
E)  abrasion. 
A)  the rock cycle. 
B)  sedimentation. 
C)  chemical weathering. 
D)  mechanical weathering. 
E)  abrasion.

Question 14

The continental crust of the earth is _____________ while the oceanic crust is _____________.

Accepted Answer

A)  similar in composition to the outer core; thicker and lighter than the continental crust 
B)  thicker and lighter than the oceanic crust; similar in composition to the mantle 
C)  similar in composition to the mantle; thicker and lighter than the continental crust 
D)  similar in composition to the outer core; similar in composition to the mantle 
E)  thicker and lighter than the oceanic crust; similar in composition to the inner core 
A)  similar in composition to the outer core; thicker and lighter than the continental crust 
B)  thicker and lighter than the oceanic crust; similar in composition to the mantle 
C)  similar in composition to the mantle; thicker and lighter than the continental crust 
D)  similar in composition to the outer core; similar in composition to the mantle 
E)  thicker and lighter than the oceanic crust; similar in composition to the inner core

Question 15

Which of the following factors were not in your explanation?

Accepted Answer

A)  Technological inventions can increase the efficiency of gold extraction from the ore. 
B)  New sources of the gold ore are found through better exploration techniques. 
C)  Technological inventions can increase efficiency of gold processing out of the ore. 
D)  As supplies decrease and prices rise it is less rewarding to explore for new sources of the gold. 
E)  All of these factors are based in economics and would be used in my explanation. 
A)  Technological inventions can increase the efficiency of gold extraction from the ore. 
B)  New sources of the gold ore are found through better exploration techniques. 
C)  Technological inventions can increase efficiency of gold processing out of the ore. 
D)  As supplies decrease and prices rise it is less rewarding to explore for new sources of the gold. 
E)  All of these factors are based in economics and would be used in my explanation.

Question 16

Placer mining causes environmental damage chiefly by

Accepted Answer

A)  destroying streambed habitats. 
B)  clogging streams with silt. 
C)  introducing toxic compounds to streams. 
D)  smothering aquatic life. 
E)  All of these are correct. 
A)  destroying streambed habitats. 
B)  clogging streams with silt. 
C)  introducing toxic compounds to streams. 
D)  smothering aquatic life. 
E)  All of these are correct.

Question 17

Rock formed from magma extruded to the surface through volcanic vents is classified as

Accepted Answer

A)  sedimentary. 
B)  igneous. 
C)  metamorphic. 
D)  weathered rock. 
E)  lava. 
A)  sedimentary. 
B)  igneous. 
C)  metamorphic. 
D)  weathered rock. 
E)  lava.

Question 18

Nuees Ardentes are sonic waves associated with earthquakes.

Accepted Answer

A) True 
 B)False

Question 19

The need for extraction of raw metals for making steel has been reduced due to the

Accepted Answer

A)  increase in the number of smelters. 
B)  increase in minimills. 
C)  decrease in demand for steel. 
D)  decrease in amount of ore used to produce high quality steel. 
E)  increase in legislation and regulation for the extraction of raw materials. 
A)  increase in the number of smelters. 
B)  increase in minimills. 
C)  decrease in demand for steel. 
D)  decrease in amount of ore used to produce high quality steel. 
E)  increase in legislation and regulation for the extraction of raw materials.

Question 20

One of the largest earthquakes ever recorded in North America occurred around New Madrid Missouri in 1812.

Accepted Answer

A) True 
 B)False

Metamorphic rocks are produced when rocks are

__________ rocks are often the source of metal ores such as gold, silver, and copper.

The "ring of fire" is the source of more earthquakes and volcanic activity than any other place on earth. What causes the ring of fire?

Evaporites, formed from _, are important economically because they are often found at or above 97% purity and are .

A giant sea swell known as a tsunami is caused by

Why would the environmental degradation associated with mining be a low priority for a less-developed country?

A major environmental implication of the quest for more gold at lower concentrations in the ore compared to higher concentrations is that

Which of the following countries is not a principle consumer of crucial metals?

The United States keeps large stockpiles of bauxite to ensure a supply of aluminum. This is an example of

Smelting releases metals from ore.

What gas is released in the process of smelting?

________ in the mantle and core make tectonic plates move.

The physical breakdown of a rock into smaller pieces is called

The continental crust of the earth is _ while the oceanic crust is _.

Which of the following factors were not in your explanation?

Placer mining causes environmental damage chiefly by

Rock formed from magma extruded to the surface through volcanic vents is classified as

Nuees Ardentes are sonic waves associated with earthquakes.

The need for extraction of raw metals for making steel has been reduced due to the

One of the largest earthquakes ever recorded in North America occurred around New Madrid Missouri in 1812.

Understanding Our Environment

Environmental Systems: Connections, Cycles, Flows and Feedback Loops

Evolution, Species Interactions, and Biological Communities

Human Populations

Biomes and Biodiversity

Environmental Conservation: Forests Grasslands Parks and Nature Preserves

Food and Agriculture

Environmental Health and Toxicology

Air: Climate and Pollution

Water: Resources and Pollution

Energy

Solid and Hazardous Waste

Economics and Urbanization

Environmental Policy and Sustainability

Filters

Exam 11: Environmental Geology and Earth Resources

Metamorphic rocks are produced when rocks are

__________ rocks are often the source of metal ores such as gold, silver, and copper.

The "ring of fire" is the source of more earthquakes and volcanic activity than any other place on earth. What causes the ring of fire?

Evaporites, formed from ___________, are important economically because they are often found at or above 97% purity and are __________.

A giant sea swell known as a tsunami is caused by

Why would the environmental degradation associated with mining be a low priority for a less-developed country?

A major environmental implication of the quest for more gold at lower concentrations in the ore compared to higher concentrations is that

Which of the following countries is not a principle consumer of crucial metals?

The United States keeps large stockpiles of bauxite to ensure a supply of aluminum. This is an example of

Smelting releases metals from ore.

What gas is released in the process of smelting?

________ in the mantle and core make tectonic plates move.

The physical breakdown of a rock into smaller pieces is called

The continental crust of the earth is _____________ while the oceanic crust is _____________.

Which of the following factors were not in your explanation?

Placer mining causes environmental damage chiefly by

Rock formed from magma extruded to the surface through volcanic vents is classified as

Nuees Ardentes are sonic waves associated with earthquakes.

The need for extraction of raw metals for making steel has been reduced due to the

One of the largest earthquakes ever recorded in North America occurred around New Madrid Missouri in 1812.

Understanding Our Environment

Environmental Systems: Connections, Cycles, Flows and Feedback Loops

Evolution, Species Interactions, and Biological Communities

Human Populations

Biomes and Biodiversity

Environmental Conservation: Forests Grasslands Parks and Nature Preserves

Food and Agriculture

Environmental Health and Toxicology

Air: Climate and Pollution

Water: Resources and Pollution

Energy

Solid and Hazardous Waste

Economics and Urbanization

Environmental Policy and Sustainability

Filters

Evaporites, formed from _, are important economically because they are often found at or above 97% purity and are .

The continental crust of the earth is _ while the oceanic crust is _.