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When is the Northern Hemisphere tilted toward the Sun?
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Which of the following elements would you expect to have the lowest ionization energy value? fluorine, lithium, neon, nitrogen
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Transportation is the largest single source of air pollution in the united states. air pollution can harm the environment and human health. which technology could offer a solution to this problem? mufflers that reduce noise motors that run on electricity tires that improve gas mileage
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In the cathode ray tube experiment, j. j. thomson passed an electric current through different gases inside a cathode ray tube in the presence of an electric field. in which two ways did this experiment change scientists’ understanding of the atom?
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When is the Northern Hemisphere tilted toward the Sun?...
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