One proposed project to restore louisiana wetlands is to backfill canals that were built for access to and transportation of oil from the coastal area. why might scientists first want to build and study a model of their proposed object?

Scientists would probably want to model this first so they will identify the outcome instead of creating a large catastrophe. It wouldn't be an upright idea for scientists to begin a project without knowing if it will work, the consequence, and if it’s safe to do on the land. 

photosynthesis makes the glucose that is used in cellular respiration to make atp. the glucose is then turned back into carbon dioxide, which is used in photosynthesis. while water is broken down to form oxygen during photosynthesis, in cellular respiration oxygen is combined with hydrogen to form water.