2. The amount of chlorophyll in a pond sample is directly related to the amount of algae in the water. The more algae present in the pond, the more chlorophyll will be in the sample (i.e., the sample will be greener). The pond sample can be treated and run through a spectrophotometer to determine the exact amount of chlorophyll in the sample. The spectrophotometer reads the absorbance (which is based on color) and compares it to values established with a standard curve. Is this sort of assessment quantitative, qualitative, or semi-quantitative? I 3. Dr. Brown has hypothesized that wetland plants will take up common pollutants from municipal wastewater that are not completely removed during the treatment process. The wastewater is typically discharged directly into a creek. She constructs a wetland just downstream of the treatment plant and pumps a portion of the discharge water through the wetland. After moving through the wetland, the water will eventually make it to the creek. Dr. Brown measures the concentration of three common pollutants in the wastewater before it enters the wetland and again at the end of the wetland prior to discharge into the creek. Are Dr.Brown’s methods quantitative, qualitative, or semi-quantitative?