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• what were the historical origins and characteristics of the free enterprise system?
  
• which statements about the reaction are true? select all that apply. the reaction is exothermic the reaction is endothermic the equation shows that 891 kj of energy are released as a product. the equation shows that 891 kj of energy are absorbed as a reactant. the graph shows that the reactants have greater potential energy than the products.
  
• in which areas of the diagram does conduction occur? w and x x and z y and z z and w
  
• why would the federal government and city government find it necessary regulate water standards
  
• impersonal communication"" c. ""closing arguments"" d. ""subject
  
• what is the equation of this trend line? enter your answers by filling in the boxes. n = m +
  
• in all of these phylogenetic trees, the gain or loss of a trait is represented by a red trait mark. these marks are a way of showing change---that is, evolution. which tree does the best job of showing which branches are evolving?
  
• when a cold cp air mass passes over the warmer great lakes, it absorbs heat energy and moisture and becomes humidified. this is known as the
  
• an individual is a fifty-year-old smoker that lives in a highly polluted city, gets no exercise, eats fast food every day, and has a family history of lung cancer. which of the following is an uncontrollable risk factor? a. diet choice b. heredity c. smoking d. lack of exercise please select the best answer from the choices provided. a b c d
  
• select the correct compound. reactants undergo chemical reaction to form products. this chemical equation represents one such reaction. the coefficient for one of the reactants or products is incorrect. which part of the chemical equation is incorrect?