Answer- D
Every year on March 22, World Water Day is observed to highlight the importance of water and increase global awareness of the water crisis.
Its main objective is to promote the accomplishment of SDG 6, which seeks to provide access to clean water and sanitation to all by 2030.
The day is dedicated to increasing awareness of water-related concerns, including water pollution, scarcity, inadequate supply, and insufficient sanitation.
The aim is to encourage people to manage freshwater resources sustainably and take essential steps to address these problems.