World Water Day is celebrated annually on March 22nd.
The day was first observed in 1993 after it was recommended at the United Nations Conference on Environment and Development (UNCED) in Rio de Janeiro in 1992.
Each year, a new theme is chosen for World Water Day to raise awareness about different water-related issues.
About 71% of the Earth's surface is covered in water, but only 2.5% of that is freshwater.
Water is the only substance on Earth that can exist in three states of matter - solid, liquid, and gas.
The average American household uses around 300 gallons(approx) of water per day.
The world's largest waterfall, Angel Falls in Venezuela, is over 3,200 feet tall.