Answer- A
Every year on March 1st, the World Seagrass Day is celebrated to increase awareness about the vital role of seagrass in the marine ecosystem.
Seagrasses are grass-like plants that grow near the sea and are the only flowering plants to thrive in the marine environment.
There are over 60 species of seagrasses found worldwide, and they serve as an excellent carbon sink while also providing food for marine creatures.