If a dam project increases irrigation but affects river ecology and rehabilitation, what does geography show?

Correct answer: The relation between development benefits and social and environmental impacts

Option B is correct because geography evaluates development projects through both their benefits and their consequences for people and environments. A dam may store water, support irrigation, generate electricity and reduce seasonal shortages. At the same time, it can alter river flow, sediment movement, fish habitats and downstream ecosystems. Reservoir construction may submerge land and require the displacement and rehabilitation of communities, creating questions about compensation, livelihoods and fairness. An integrating geographical approach therefore compares physical processes, economic gains, ecological costs and social outcomes rather than examining engineering dimensions alone. Option A recognises only storage, while C focuses only on structure and D provides no analysis. The key concept is sustainable and socially responsible development based on the relationship between environment, economy and society.