Cumulative Impact Assessment (CIA) plays a critical role in Environmental Impact Assessment (EIA) by evaluating the collective effects of several projects on the environment. While traditional EIA focuses on assessing the impact of a single project, CIA expands the scope to consider how multiple projects, possibly over time and space, interact with each other and with existing environmental conditions.
This comprehensive approach is crucial for several reasons:
Thus, the correct answer is: CIA assesses the combined impacts of multiple projects on the environment.