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Halons contain halogens which are highly reactive to oxygen, true or false?
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What is genetic variation? -(a) each individual in a population has slightly different genes. -(b) some individuals in a population have more genes than others. -(c) each population of a species has slightly different genes. -(d)some populations of a species have more genes than others.
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In the 1500s, an astronomer developed a new model of the universe. this model had the sun at the center of the universe, not earth. who was this astronomer?
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Which are results of technological advances? people's increased exposure to new ideas the development of an increasingly global culture their value by people around the world the bringing of harmony to diverse groups of people the reduction of the number of people living in rural areas
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Halons contain halogens which are highly reactive to oxygen, true or false?...
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