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  1. How far must one travel to get away from the Earth's gravitational field? A) to a region beyond the solar system B) to a region above the Earth's atmosphere C) to a region well beyond the moon D) Forget it; you can't travel far enough

  2. 21 ore fa · The population etiological fraction is a measure of the proportion of the disease rate in a population attributable to the exposure of interest. This measure of effect is influenced by: A. the relative risk of the disease in exposed individuals versus unexposed individuals. B. the prevalence of the disease in the population.