Question 1

The most abundant element in the earth's crust is

Accepted Answer

A) silicon. 
B) iron. 
C) oxygen. 
D) sodium. 
A) silicon. 
B) iron. 
C) oxygen. 
D) sodium.

Question 2

The two major components in cement are

Accepted Answer

A) clay and limestone. 
B) sand and limestone. 
C) calcium carbonate and limestone. 
D) quartz and limestone. 
A) clay and limestone. 
B) sand and limestone. 
C) calcium carbonate and limestone. 
D) quartz and limestone.

Question 3

Carbonates are composed of

Accepted Answer

A) carbon and oxygen. 
B) carbon, oxygen and metals. 
C) carbon, sulfur and metals. 
D) carbohydrates and metals. 
A) carbon and oxygen. 
B) carbon, oxygen and metals. 
C) carbon, sulfur and metals. 
D) carbohydrates and metals.

Question 4

Optical fibers are made from hair-thin threads of

Accepted Answer

A) marble. 
B) glass. 
C) asbestos. 
D) ceramics. 
A) marble. 
B) glass. 
C) asbestos. 
D) ceramics.

Question 5

In comparing the actual relative costs of aluminum and steel,which of the following should be considered?

Accepted Answer

A) cost of mining and transporting the ore 
B) cost of environmental maintenance 
C) cost of extracting the metal 
D) All of the above must be considered. 
A) cost of mining and transporting the ore 
B) cost of environmental maintenance 
C) cost of extracting the metal 
D) All of the above must be considered.

Question 6

Which of the following metals does the United States import from other countries?

Accepted Answer

A) indium 
B) lithium 
C) palladium 
D) All of the above are imported from other countries. 
A) indium 
B) lithium 
C) palladium 
D) All of the above are imported from other countries.

Question 7

Recycling steel cans is more economical than recycling aluminum cans.

Accepted Answer

A) True 
 B)False

Question 8

Which of the following has led to a rapid increase in the world's population since 1900?

Accepted Answer

A) an increase in the birth rate 
B) a decrease in the birth rate 
C) an increase in the death rate 
D) a decrease in the death rate 
A) an increase in the birth rate 
B) a decrease in the birth rate 
C) an increase in the death rate 
D) a decrease in the death rate

Question 9

Limestone is consists of

Accepted Answer

A) Al₂O₃. 
B) CaCO₃. 
C) Fe₂O₃. 
D) PbS. 
A) Al₂O₃. 
B) CaCO₃. 
C) Fe₂O₃. 
D) PbS.

Question 10

The properties of glass are modified by which approach?

Accepted Answer

A) firing at higher temperatures 
B) glazing at low temperatures 
C) adding various metal oxides 
D) substituting carbon dioxide for silicon dioxide 
A) firing at higher temperatures 
B) glazing at low temperatures 
C) adding various metal oxides 
D) substituting carbon dioxide for silicon dioxide

Question 11

Which of the following is NOT a potential problem with a sanitary landfill?

Accepted Answer

A) A landfill may leak and contaminate groundwater. 
B) Materials in a landfill decompose more slowly than materials that are exposed to environmental conditions. 
C) The landfill will eventually fill up. 
D) All of the above are potential problems of landfills. 
A) A landfill may leak and contaminate groundwater. 
B) Materials in a landfill decompose more slowly than materials that are exposed to environmental conditions. 
C) The landfill will eventually fill up. 
D) All of the above are potential problems of landfills.

Question 12

What is NOT true of plastic bags?

Accepted Answer

A) They are recyclable. 
B) They take a while to break down. 
C) They do not harm wildlife. 
D) They are made from petroleum. 
A) They are recyclable. 
B) They take a while to break down. 
C) They do not harm wildlife. 
D) They are made from petroleum.

Question 13

Although cement and concrete themselves are relatively non-polluting,their production and use are a source of several potential environmental problems.Describe two examples.

Accepted Answer

Extensive mining for limestone

Question 14

Clays have widely varying compositions,but basically they are

Accepted Answer

A) aluminum carbonates. 
B) aluminum silicates. 
C) iron carbonates. 
D) iron silicates. 
A) aluminum carbonates. 
B) aluminum silicates. 
C) iron carbonates. 
D) iron silicates.

Question 15

Which of the following is NOT a major component of the earth's rocks and minerals?

Accepted Answer

A) carbonates 
B) organic compounds 
C) oxides 
D) silicates 
A) carbonates 
B) organic compounds 
C) oxides 
D) silicates

Question 16

Pure quartz is composed of

Accepted Answer

A) silicon and oxygen. 
B) silicon, oxygen and metals. 
C) silicon, sulfur and metals. 
D) calcium, oxygen and metals. 
A) silicon and oxygen. 
B) silicon, oxygen and metals. 
C) silicon, sulfur and metals. 
D) calcium, oxygen and metals.

Question 17

Which of the following is a noncrystalline solid that has no defined melting point?

Accepted Answer

A) quartz 
B) glass 
C) cement 
D) mica 
A) quartz 
B) glass 
C) cement 
D) mica

Question 18

Which material is characterized by a well-ordered,three-dimensional structure of SiO₄ tetrahedra?

Accepted Answer

A) asbestos 
B) mica 
C) glass 
D) quartz 
A) asbestos 
B) mica 
C) glass 
D) quartz

Question 19

Replacing steel with aluminum whenever possible will minimize harm to the environment.

Accepted Answer

A) True 
 B)False

Question 20

The majority of metals and minerals come from the

Accepted Answer

A) lithosphere. 
B) hydrosphere. 
C) mantle. 
D) atmosphere. 
A) lithosphere. 
B) hydrosphere. 
C) mantle. 
D) atmosphere.

Exam 12: Chemistry of the Earth

The most abundant element in the earth's crust is

The two major components in cement are

Carbonates are composed of

Optical fibers are made from hair-thin threads of

In comparing the actual relative costs of aluminum and steel,which of the following should be considered?

Which of the following metals does the United States import from other countries?

Recycling steel cans is more economical than recycling aluminum cans.

Which of the following has led to a rapid increase in the world's population since 1900?

Limestone is consists of

The properties of glass are modified by which approach?

Which of the following is NOT a potential problem with a sanitary landfill?

What is NOT true of plastic bags?

Although cement and concrete themselves are relatively non-polluting,their production and use are a source of several potential environmental problems.Describe two examples.

Clays have widely varying compositions,but basically they are

Which of the following is NOT a major component of the earth's rocks and minerals?

Pure quartz is composed of

Which of the following is a noncrystalline solid that has no defined melting point?

Which material is characterized by a well-ordered,three-dimensional structure of SiO₄ tetrahedra?

Replacing steel with aluminum whenever possible will minimize harm to the environment.

The majority of metals and minerals come from the

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