East Kolkata wetlands have been declared as a:
- ABiodiversity site
- BTourist site
- CWorld Heritage site
- DRamsar site
Solution & Step-by-step Explanation
The East Kolkata Wetlands were officially designated as a Ramsar site (Wetland of International Importance) on August 19, 2002. They are renowned for their unique multi-use resource system, utilizing urban wastewater for productive aquaculture and agriculture.