2. An experiment was performed to determine how much fertilizer was needed to produce the most pumpkins on the vine. The results are shown below. Pumpkin A Pumpkin B Pumpkin C Type of pumpkin seed Jack-o-Lantern Jack-o-Lantern Jack-o-Lantern Amount of water given daily (mL) 29.5 29.5 29.5 Amount of sunlight full sunlight full sunlight full sunlight Temperature (oC) 23.9 23.9 23.9 Amount of fertilizer given (g) 0 200 300 Type of soil organic Organic Organic Day the seeds were planted 7/8/2007 7/8/2007 7/8/2007 Number of pumpkins that the vine produced. 3 6 2 1. What is the independent variable? 2. What is the dependent variable? 3. What is the control group in this experiment? 4. Name 3 constants. 5. How much fertilizer would you use to grow the most pumpkins?