As towns and cities grow, energy use increases—powering homes, schools, transportation, and industries. But energy production also affects Earth's systems in different ways. Some impacts become more severe as population size increases. Density-dependent impacts depend on how many people are in a given area. Density-independent impacts might occur regardless of how many people live nearby. Such events can cause major environmental harm whether there are many people nearby or very few. Classify each statement based on whether it is density-dependent or density-independent. Drag each to the correct box.