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If you relate the doppler effect on sound to the color of light waves, a police car would be the color as it approaches and the color as it recedes away from the observer.
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Which statement describes the punctuated equilibrium theory?
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9. technology can bring both good and bad things. building a vertical farm can increase food supplies in cities (good), but it may cause unemployment in rural areas (bad). give another example of both the good and bad sides of a technological advancement (5 noints)
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Afemale cat has two recessive genes for long fur (ss) and a male cat has two dominant genes for shor...
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