Earth Day is on April 22, but really, it should be every day. After all, saving the planet should be a daily occurrence, right?!? From conservation to wildlife to politics, test your environmental and historical knowledge with this Earth Day quiz with trivia questions and answers.Related: 54 of the Best Ways To Live That No-Single-Use-Plastic Life
Earth Day Quiz and Trivia Questions (With Answers)
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Question: Who is credited with founding Earth Day?Answer: Gaylord NelsonQuestion: The founder of Earth Day is a senator from which state?Answer: WisconsinQuestion: Who took Earth Day international?Answer: Denis HayesQuestion: When is Earth Day?Answer: April 22Question: Earth Day's date was chosen because it falls between which two events on college campuses?Answer: Spring break and final examsQuestion: When was the first Earth Day?Answer: 1970Question: How many people recognized the first Earth Day?Answer: 20 millionQuestion: How many indigenous people inhabit forests worldwide?Answer: About 50 millionQuestion: Which bestselling book warned of the effects of pesticides?Answer: Silent Spring by Rachel CarsonRelated: What Is Arbor Day and Why Do We Celebrate It? All About the Tree-Centric Holiday
Earth Day Mud CakesQuestion: Which Hollywood actors spoke to crowds in Union Square in New York City on the first Earth Day?Answer: Paul Newman and Ali MacGraw
Question: What region on Earth produces 20% of the planet's oxygen?Answer: The Amazon rainforest
Question: How many people attended the first Earth Day rally in New York City's Union Square?Answer: 20,000
Question: Earth Day detractors argued that the first celebration was really to honor whose 100th birthday?Answer: Vladimir Lenin
Question: How many countries (so far) have celebrated Earth Day?Answer: 192
Question: Earth Day's founding was partially inspired by protestors against what?Answer: The Vietnam War
Question: The first Earth Day eventually led to the creation of which government agency?Answer: The Environmental Protection Agency (EPA)
Question: Which president created the EPA?Answer: Richard Nixon
Question: Which U.S. president joined Gaylord Nelson for a multi-state conservation-themed tour?Answer: John F. Kennedy
Question: In addition to establishing the EPA, President Nixon also passed which pieces of legislation in 1970 inspired by the Earth Day movement?Answer: National Environmental Education Act, the Occupational Safety and Health Act, and the Clean Air Act
Related: 'There Is No Planet B'—75 Earth Day Instagram Captions To Inspire Change
Earth Day Trivia Questions for Kids and Adults
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Question: When did the Clean Water Act pass?Answer: 1972
Question: The United Nations has what name for Earth Day?Answer: International Mother Earth Day
Question: Approximately how many people participate in Earth Day each year?Answer: One billion
Question: Most of Earth's breathable air comes from where?Answer: The ocean
Question: Which astronaut brought tree seeds with him into space that were later grown on Earth?Answer: Stuart Roosa
Question: A single tree produces enough air to supply how many people for a year?Answer: Four
Question: Which president honored Gaylord Nelson with the Presidential Medal of Freedom?Answer: Bill Clinton
Question: In 2012, how many commuters in China rode bikes to protest carbon emissions and air pollution?Answer: 100,000
Question: In 1970, students at San Fernando State College passed out what to represent the future famine the planet would face if environmental protections weren't enacted?Answer: Rice and tea
Question: In 1970, students at Florida Technological University held a mock trial for what, accusing it of air pollution?Answer: A Chevrolet
Question: Gaylord Nelson was moved to create Earth Day after which disaster?Answer: Santa Barbara oil spill
Question: Who wrote the Earth Day theme song?Answer: Abhay Kumar
Question: How many college campuses participated in the first Earth Day?Answer: About 1,500
Question: What singer sailed from New York City to Washington, D.C., for the first Earth Day?Answer: Pete Seeger
Question: Who took a zero-carbon voyage from Europe to the United States to raise awareness of climate change?Answer: Greta Thunberg
Related: 30 Inspiring Quotes for Earth Day: 'The Environment Is Where We All Meet'
Environmental Trivia Questions
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Question: In Panama, 100 endangered species of what were planted for Earth Day?Answer: Orchids
Question: In 2011, 28 million trees were planted in which country for the Earth Day "Plant Trees, Not Bombs" campaign?Answer: Afghanistan
Question: When did Earth Day go global?Answer: 1990
Question: What holiday followed Earth Day in 1972?Answer: World Environment Day
Question: Which President signed the Paris Agreement?Answer: Barack Obama
Question: What 1968 book warned of the dangers of overpopulation on the planet?Answer: The Population Bomb by Paul Erlich
Question: What American river caught fire in 1969 from all of the waste and pollution filling it?Answer: Cuyahoga River
Question: What organization largely funded the first Earth Day?Answer: United Auto Workers (also known as The International Union, United Automobile, Aerospace, and Agricultural Implement Workers of America)
Question: Gaylord Nelson and Denis Hayes originally planned for the first Earth Day to be what type of event?Answer: An environmental teach-in
Question: What was referred to as "The Dirty Dozen" in 1970?Answer: Congressmen with poor environmental records
Question: What famous poet attended the first Earth Day event in Philadelphia?Answer: Allen Ginsburg
Question: Who wrote the Earth Day single "Tomorrow's World?"Answer: Pam Tillis and Kix Brooks
Question: When did Google introduce its first Earth Day doodle?Answer: 2001
Question: Equinox Earth Day takes place when each year?Answer: March 20
Question: April 22 is the birthdate of which famous conservationist?Answer: John Muir
Question: What is the theme of Earth Day 2025?Answer: "Our Power, Our Planet"
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Related: 25 Earth Day Facts—Plus, How To Help the Planet Today and Every Day
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