Negative estuaries are found in:

Correct option is A

Correct Answer: (a) Arid zones
Explanation:
→ Negative estuaries (also called inverse estuaries) occur where evaporation exceeds freshwater inflow—common in arid climates—causing surface salinity to be higher nearshore than offshore.
→ They commonly form in closed basins with high evaporation rates.
Information Booster:
→ Negative estuaries exhibit circulation opposite to typical estuaries and can be hypersaline.
Additional Information (Other Options):
(b),(c),(d): Not typical settings for negative/inverse estuaries.