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19) True or False? After 60 years, a population growing at a rate of 4% per year will have grown by twice as many people as a population growing at a rate of 2% per year. A) True B) False 23) True or False? Longitude measures positions east or west position. A) False B) True 24) True or False? Two triangles are similar if the},r have the same size, but not necessarily the same shape. A) False B) True 27) The half-life of a drug in the bloodstream is 12 hours. By what factor does the concentration of the drug decrease in 23 hours