Georgia Science Grade 7

Chapter 27: Conserving Resources

CRCT Practice

1
From what natural resource are plastics, paints, and gasoline made?
A)coal
B)petroleum
C)iron ore
D)natural gas
2
What is produced by the mechanism shown in the illustration?

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A)electricity
B)coal
C)petroleum
D)plastic
3
In which section are the turbine blades found?

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A)1
B)2
C)3
D)4
4
Which section represents the generator?

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A)1
B)2
C)3
D)4
5
Which of the following is a type of air pollution that results when sunlight reacts with pollutants produced by burning fuels?
A)ozones
B)acid rain
C)smog
D)UV radiation
6
What is the name of the method of farming illustrated?

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A)contour plowing
B)strip cropping
C)terracing
D)no-till farming
7
What is the purpose of the method shown in the illustration?

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A)to decrease soil erosion from wind
B)to decrease soil erosion from water flow
C)to decrease acid rain production
D)to increase the return of nutrients to the soil
8
Which of the following is necessary for the production of hydroelectric power?
A)wind
B)access to a river
C)exposure to sunlight
D)heat from below Earth's crust
9
With which type of alternative energy are photovoltaic cells used?
A)hydroelectric power
B)geothermal energy
C)nuclear energy
D)solar energy
10
Which of the following is a renewable resource?
A)oil
B)water
C)coal
D)natural gas
11
What type of alternative energy is the girl using in the diagram?

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A)geothermal
B)nuclear
C)solar
D)hydroelectric
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