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Earth Science Chapter 7 Flashcards | StudBud
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Earth Science Chapter 7
Earth Science Chapter 7
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1
What percent of the world's energy comes from nonreewable energy resources?
100%
93%
7%
75%
2
A fossil fuel that is sometimes obtained from shale is
anthracite
oil
uranium
peat
3
A mineral reserve refers to
the rate at which the mineral is used
the equipment needed to find the mineral
the cost of mining the mineral
the known deposits of the mineral that are worth mining
4
Which of the following power sources is most efficient for producing electricity?
bituminous coal
uranium
wind
antracite
5
The mining process can be difficult and expensive, but metal mineral reserves are mined because
metals are useful and there is great demand for them
metals cannot be imported
metals are easily located
there is little demand for metals
6
A fuel commonly found with oil is
natural gas
lignite
uranium
gasoline
7
Which of the following is most likely made from a nonrenewable resource?
bread
oxygen
lumber
gasoline
8
The Pollution Prevention Act of 1990 was designed to
control pollution and encourage conservation
increase the cost of gasoline to curb its use
limit the amount of electricity households can use in a year
eliminate the use of nuclear power
9
Fossil fuels include all of the following except
petroleum
coal
natural gas
nuclear energy
10
All of the following methods of generating electricity involve a turbine except
nuclear fission
solar cells
water power
burning coal
11
Examples of conserving or protecting resources include all of the following except
removing topsoil before mining and replacing it afterwards
insulating homes
reducing the amount of gasoline used
allowing runoff from mines to enter streams and lakes
12
The amount of power produced by a windmill depends on all of the following except:
the length of the windmills' blades
the energy needs of consumers
the efficiency of the windmill
the speed of the wind
13
Hydroelectric power generates electricity with
hot bedrock
moving air
moving electrons
water
14
Which of the following is not a method of conserving nonrenewable resources?
discovering new deposits of nonrenewable materials
recycling materials
developing substitute materials
reducing waste
15
Nonmetallic mineral resources frequently used in construction are
sulfur and talc
salt and gypsum
sand and gravel
graphite and nitrate
16
The main use of coal in the United States today is
home heating
electricity generation
steel producing
petroleum refining
17
Which of the following energy sources does not pollute the environment?
geothermal
oil
nuclear
none of the above
18
The type of coal that releases the greatest amount of energy when burned is
peat
lignite
anthracite
bituminous
19
The core of a nuclear reactor includes
a pump
a generator
a turbine
nuclear fuel
20
The energy source that depends on Earth's internal heat is
fossil fuels
water power
geothermal energy
uranium
