Describe a cone of depression and its potential impacts on sustainable groundwater management.

• A. Local groundwater drawdown around a pumped well lowers the water table, which can reduce nearby well yields, harm surface water bodies, and cause land subsidence if over-pumped.
• B. A circular increase in groundwater due to rainfall.
• C. A natural feature where groundwater rises around a well.
• D. A type of aquifer with high porosity.

Answer: (A)