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Biology, 22.06.2019 07:00
According the inverse square law, doubling the distance from the source of the sound, a speaker, for example, will drop the sound 6 db each time. if you were standing in the back of an auditorium, 32 feet away from a speaker not using any amplification, would you be able to hear a speaker clearly? why or why not?
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Biology, 22.06.2019 16:30
The united states uses which source of energy to produce almost 40 percent of its electricity
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Describe another example of how echnology has changed how people live
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Biology, 23.06.2019 01:00
The graph shows the area of forest cover in various regions of the world through a forest station forest habitats have been established in areas that previously didn't have forest and with geographic region has this approach been most successful
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How does the introduction of invasive species such as the brown tree snake upset the stability of th...
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