9.The word “it” in line 22 refers to (A)a nutrient solution (B)a glass flask (C)boiling (D)spontaneous generation

14.The author mentions Thomas Jefferson in paragraph 1 as an example of (A)a leader during the Revolution (B)an inventor of new farming techniques (C)a philosopher who believed farmers were essential to the creation of a good society (D)a farmer who guided the agrarian movement toward an emphasis on economic development