Tennessee Science Grade 7

Chapter 12: Conserving Resources

Conserving Resources

1
Which one of the following is a fossil fuel?
A)nuclear power
B)oil
C)wind
D)wood
2
The most reliable source of energy for all life on Earth is __________.
A)nuclear power
B)the Sun
C)coal
D)the wind
3
Wind and rain can cause __________, the movement of soil from one place to another.
A)solid wastes
B)soil pollution
C)erosion
D)acid rain
4
Which is the easiest type of plastic to recycle?
A)type 7
B)type 2
C)type 1
D)type 4
5
Which one of the following human activities would be most likely to increase soil erosion?
A)contour plowing
B)cutting down a forest
C)strip cropping
D)no-till farming
6
Earth would be too cold to support life as we know it without
A)geothermal energy
B)the greenhouse effect
C)the ozone layer
D)global warming
7
Which one of the following is an example of solid waste?
A)algae blooms
B)smog
C)food scraps
D)oil spills
8
Used paper, grass clippings, and vegetable scraps can be turned into soil-enriching __________.
A)sewage
B)plastics
C)oxygen
D)compost
9
What type of energy is released from uranium, a radioactive element?
A)solar energy
B)fossil fuel energy
C)geothermal energy
D)nuclear energy
10
The 3 Rs of conservation are
A)reduce, reduce, and reduce again
B)reduce, reuse, and recycle
C)restore rural regions
D)resources, rain, and renewable
11
__________ is electricity produced when the energy of falling water turns the blades of a generator turbine.
A)hydroelectric power
B)nuclear power
C)wind power
D)solar power
12
When algae from an algal bloom die, they are broken down by bacteria that use up much of the __________in the water.
A)chemical pesticides
B)food
C)oxygen
D)carbon dioxide
13
Rain can cause water pollution when it washes __________.
A)all answers are correct
B)pesticides and fertilizers into streams
C)air pollutants out of the sky
D)oil and grease off of roads and parking lots
14
Satellites that orbit Earth use __________ to generate electricity.
A)geothermal energy
B)nuclear power
C)solar cells
D)fossil fuels
15
Not only does it save resources to recycle metals and glass, it also takes far less __________ to make containers and other products from recycled minerals.
A)water
B)paper
C)energy
D)aluminum
16
Water that collects between particles of soil and rocks is called __________.
A)rain water
B)surface water
C)groundwater
D)water pollution
17
Any substance that contaminates the environment is __________.
A)a greenhouse gas
B)a pollutant
C)an acid
D)a mineral
18
To reduce your fossil fuel use you can take public transportation instead of __________.
A)walking
B)riding a bike
C)staying home
D)driving alone in a car
19
Which one of the following is a renewable resource?
A)iron
B)petroleum
C)aluminum
D)water
20
Which one of the following is an example of indoor air pollution?
A)smog
B)radon
C)greenhouse effect
D)acid precipitation
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