How much do you know about Earth Day? Take our quiz!
April 22 marks the 42nd anniversary of Earth Day, a day intended to inspire awareness and promote appreciation for the Earth's natural environment. In honor of the holiday, test your knowledge of Earth Day history, trivia, and statistics.
1. When was the first Earth Day celebrated?
March 21, 1970
April 22, 1970
May 21, 1970
June 22, 1970