Activity 8. Apply It! Read the given statement and justify your answer. Quarrying is the process of removal of rocks, sand, gravel, or other minerals from the ground to produce materials for construction and others. Last December 2020, the Department of Environment and Natural Resources (DENR) launched an investigation into quarry operations in Rizal after heavy flooding hit the province and Marikina City. Torrential rains due to Ulysses pushed the water level in the Marikina River to swell over 22 meters-higher than what it reached in 2009 because of Typhoon Ondoy, inundating Marikina City, Based on this event, what is your stand about this? Justify your answers. CO QU ELS​