World Earth Day- April 22nd
World Astronomy Day- 2nd May 2009
24th April 2010
National Science day- 28th February
World Environment Day- 5th June
World Population Day- 11th July
International Day for Preservation of Ozone Layer- 16th September
National Pollution Prevention Day- 2nd December
World Energy Day- 14th December
National Technology Day- 11th May
Teachers' Day- 5th September
World Water Day- 22nd March
All Gujarat Amateur Astronomers Meet -2011
12 years ago
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