Water Quality Control Board PNG Images (6)
Water Quality Control Board PNG Images (6)
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World Water Day is a United Nations day observed each year on 22 March to highlight the importance of freshwater.
Global Handwashing Day occurs on 15 October of each year.
The four-leaf clover is a rare variation of the common three-leaf clover. According to traditional superstition, such clovers bring good luck, though it is not clear when or how this superstition began.