Differentiate physical water scarcity from economic water scarcity.

• A. Physical scarcity refers to the price of water, while economic scarcity refers to drought.
• B. Physical scarcity occurs when water availability is insufficient for demand; economic scarcity occurs when water is available but inaccessible due to lack of infrastructure, governance, or finances.
• C. Physical scarcity is about groundwater depth; economic scarcity is about surface water quality.
• D. Physical scarcity is a long-term problem; economic scarcity is only seasonal.

Answer: (B)