Let's verify the dates: (1) World Water Day is observed annually on March 22nd. This pairing is correct. (2) World Environment Day is observed annually on June 5th. The pairing with April 22nd is incorrect. (3) Earth Day is observed annually on April 22nd. The pairing with June 5th is incorrect. (4) World Energy Conservation Day is observed annually on December 14th in India (globally variations exist, but Dec 14 is widely recognized in India). This pairing is correct.