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1
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used in aerosol cans
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2
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___ effect is when species communicate louder than natural because of unwanted noise
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3
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the 1970 __ requires each state develop a plan that describes how the state will meet requirements concerning tall smoke stacks.
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4
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area in which an organism or biological population lives
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6
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___ is a good way to help combat ringing of the ears. (2 words, no space)
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7
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a close growing crop planted to temporarily protect the soil surface (2 words, no space)
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8
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noise pollution can be ____ or outdoor
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11
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water is the_________. Dissolves or changes most other chemicals (2 words, no space)
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15
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noise pollution greatly affects
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16
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78% Nitrogen, 21% Oxygen, 1% mixture of other gases
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18
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planting crops without plowing or disking the soil
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19
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pale yellow element found in coal and crude oil, also combines with moisture to create acid rain
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21
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A pin dropping is ___ dB
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23
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a ____ can be purchased to test sound levels.
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25
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heat and friction resistant, used in shingles
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26
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by wearing ____, you can help prevent ear damage
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28
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third world countries still use this even though it is outlawed here
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31
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cut back on the amount of _______ that are released
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32
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follow the level of land around a hill
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33
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carry toxic materials that are harmful to more than the target organism.
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34
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noise pollution can be _____ or indoor
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35
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stopping the use of ____ products that contain cfcs.
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36
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fill empty containers with ___ to absorb all the excess materials
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