Why does Kwanzaa have seven principles and symbols?
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History, 21.06.2019 22:30
Marine exptoration of oil uses seismic waves to locate oil in the seabed. what is a negative impact from seismic waves on the aquatic ecosystem of the ocean? a.seismic waves kill microoganisms b.seismic waves disrupts the sand and causes seafloor erosion c.seismic waves have virtually no adverse affects on marine life d.seismic waves damage the sonar that dolphins and whales use to orient themselves underwater
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History, 22.06.2019 05:00
Why do many scientists suppose the land bridge theory of migration?
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History, 22.06.2019 06:30
The original term of was descriptive of lower-class people who performed manual labor.
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