Question: The Lazy River Environmental Group organized a major cleanup of the pollution from the old factory in late 2010. Measurements of pollution in river sediments before and after the cleanup were analyzed to determine the effectiveness of the cleanup. Select the Sediment Pollutant Over Time dataset and follow the interactive to graph the data. What statement best describes the results of the clean up? Multiple Choice There was an approximately two-thirds drop in pollutant levels after the cleanup, which further decreased in subsequent years. The cleanup effectively removed pollutants from the river, leaving only about 10% of the original amount by 2012. There was a one-third drop in pollutant levels after the cleanup, with a slight increase in subsequent years. The cleanup was marginally successful, since pollutant levels dropped by about 10%. Need Assignment Help?