Explanation:

All statements are correct.

World Wetlands Day (WWD)

• The State Govts and UT administrations across India celebrated World Wetlands Day (WWD) at all 75 Ramsar sites on 02nd Feb 2023. 

• The 2023 theme for World Wetlands Day is ‘Wetland Restoration’ highlighting the urgent need to prioritise wetland restoration. 

• The Union Minister for Environment, Forest and Climate Change launched the ‘Save Wetlands Campaign’ structured on a “whole of society” approach for wetlands conservation.

• World Wetlands Day is celebrated all over the world to commemorate the signing of the Ramsar Convention on Wetlands of International Importance (1971).

• India has been a party to the Convention since 1982 and has so far declared 75 wetlands as Ramsar across 23 states/UTs. India has the largest network of Ramsar Sites in Asia. 

Hence option 4th is correct.