International Ozone Day is observed on ________?

A. August 20th
B. September 16th
C. June 20
D. None of the Above

Check Also

Mohtarma Fatima Jinnah joined All India Muslim league in:

A     1937 B     1939 C      1938 D     1940

Leave a Reply

Your email address will not be published. Required fields are marked *