--- title: "How Deep Are Your Roots? An Earth Day Curiosity Quiz" url: "https:\/\/britannicaeducation.com\/blog\/earth-day-quiz\/" published: "2026-03-13T21:22:26+00:00" modified: "2026-04-28T22:18:47+00:00" author: "Britannica Education" description: "Put your curiosity to the test with our Earth Day quiz: 10 leafy questions about history, impact, and environmental legacy!" --- # How Deep Are Your Roots? An Earth Day Curiosity Quiz Put your curiosity to the test with our Earth Day quiz: 10 leafy questions about history, impact, and environmental legacy! ![Thistle background graphic](https://britannicaeducation.com/wp-content/themes/britannica-education/assets/img/backgrounds/thistle.svg) - [ Home ](https://britannicaeducation.com/) - [ Blog ](https://britannicaeducation.com/blog/) - How Deep… How Deep Are Your Roots? An Earth Day Curiosity Quiz ![two hands holding Earth](https://britannicaeducation.com/wp-content/uploads/2026/03/be-blog-earth-day-quiz-hero.jpg) [Interactive Quiz](https://britannicaeducation.com/blog/category/quiz/) # How Deep Are Your Roots? An Earth Day Curiosity Quiz March 13, 2026 ![](https://britannicaeducation.com/wp-content/uploads/2025/09/BE_Thistle-Variation-1.svg) Kristie Bangali share [![](/wp-content/themes/britannica-education/assets/img/be-facebook-icon.png)](http://facebook.com) [![](/wp-content/themes/britannica-education/assets/img/be-pinterest-icon.png)](http://pinterest.com) [![](/wp-content/themes/britannica-education/assets/img/be-linkedin-icon.png)](http://linkedin.com) [![](/wp-content/themes/britannica-education/assets/img/be-x-icon.png)](http://x.com) **FREE DOWNLOAD** ![](https://britannicaeducation.com/wp-content/uploads/2026/01/be-blog-ai-playbook-hero.jpg) **[5 Plays for AI-Powered Planning](https://britannicaeducation.com/blog/5-plays-for-ai-powered-planning/)** Navigate and champion AI at your school, district, or library. [Get the Playbook](https://britannicaeducation.com/blog/5-plays-for-ai-powered-planning/) **SPARK LEARNING THAT LASTS** [![Text: Curious Kids. 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But how much do you really know about the movement behind these moments? Put your curiosity to the test with these 10 questions exploring Earth Day’s history, impact, and environmental legacy. Good luck—we’re “rooting” for you! Earth Day Quiz - **1. How has Earth Day changed in scope from the first celebration in 1970?** It has become limited to virtual gatherings. - It is now observed in more than 140 countries. - It has shifted focus exclusively to recycling programs. - It was discontinued after the 1980s. While the first [Earth Day](https://school.eb.com/levels/high/article/Earth-Day/442790) was a national event in the United States, it became a global movement by 1990, involving 200 million people in more than 140 countries, reflecting the growing worldwide environmental consciousness. - **2. What piece of U.S. legislation was directly influenced by the activism and public support of the first Earth Day?** Clean Air Act - National Environmental Policy Act - Resource Conservation and Recovery Act - Marine Protection, Research and Sanctuaries Act The activism surrounding the first [Earth Day](https://school.eb.com/levels/high/article/Earth-Day/442790) contributed to the political momentum that led to the passage of landmark environmental laws in the 1970s, including the [ Clean Air Act](https://school.eb.com/levels/high/article/Clean-Air-Act/610247) and the Endangered Species Act. - **3. What important global environmental agreement symbolically opened for signatures on Earth Day?** The Kyoto Protocol - The Montreal Protocol - The Paris Agreement - The United Nations Charter The [ Paris Agreement](https://school.eb.com/levels/high/article/Paris-Agreement/628157), an international accord addressing climate change, was symbolically opened for signatures on Earth Day, connecting the event to high-level action and policy. - **4. How has Earth Day contributed to environmental education in schools?** It eliminated standardized testing for biology courses. - It prompted environmental teach-ins and curriculum development. - It replaced science classes with physical education. - It separated environmental topics from core academics. [ Earth Day](https://school.eb.com/levels/high/article/Earth-Day/442790) facilitated teach-ins and special programming, bringing environmental conservation into curricula and inspiring student involvement. - **5. Why was the first Earth Day, in 1970, historically significant?** It was the largest single-day protest in U.S. history. - It was organized by government agencies and staff. - It resulted in the first global treaty on climate change. - It was observed exclusively online due to a national emergency. The first [Earth Day](https://school.eb.com/levels/high/article/Earth-Day/442790) mobilized 20 million people, making it the largest single-day protest in U.S. history, and boosted support for environmental legislation. - **6. Why is sustainability considered a fundamental goal of Earth Day and its related movements?** It accelerates technological obsolescence. - It ensures long-term ecological health for future generations. - It maximizes quarterly profits for companies. - It promotes rapid urban expansion. Ecological [ sustainability](https://school.eb.com/levels/high/article/sustainability/601046) is the principle of managing natural resources and human systems for the benefit of both current and future generations. This principle underpins all Earth Day initiatives. - **7. Which of the following are major human-driven causes of modern species endangerment?** Continental drift and meteor impacts - Habitat fragmentation and pollution - Natural selection and volcanic eruptions - Seasonal migration and predation Major causes of species endangerment include [ habitat fragmentation](https://school.eb.com/levels/high/article/habitat-loss/639289), climate change, overhunting, and [ pollution](https://school.eb.com/levels/high/article/pollution/109632)—all caused primarily by human activity. - **8. The Endangered Species Act provides protection for which of the following?** Animals only - Critical habitats only - Plants and animals - Animals, plants, and critical habitats The [ Endangered Species Act](https://school.eb.com/levels/high/article/Endangered-Species-Act/474134), passed in 1973, obligates federal and state governments to protect all species and their critical habitats that are threatened with extinction. - **9. The Endangered Species Act is credited with the protection and recovery of which of the following animals?** The American alligator - The American bald eagle - The gray wolf - All of the above American alligators were removed from the [ endangered species](https://school.eb.com/levels/high/article/endangered-species/32604) list in 1987, bald eagles were removed in 2007, and gray wolves were removed in 2021. - **10. The Clean Air Act is credited with significantly reducing air pollutants by what percentage between 1970 and 2020?** 27% - 45% - 78% - 89% The Clean Air Act established [ National Ambient Air Quality Standards](https://school.eb.com/levels/high/article/National-Ambient-Air-Quality-Standards/606029) that identified six major air pollutants all states, cities, and towns must regulate: sulfur dioxide, nitrogen dioxide, particulate matter, carbon monoxide, ground-level ozone, and lead. The combined emissions of these pollutants decreased by 78 percent from 1970 to 2020. ### How Did Your Curiosity Grow? **You correctly answered 0/0 questions.** Whether you aced the quiz or discovered something new, Earth Day reminds us that meaningful change begins with curiosity. Looking for even more ways to support environmental inquiry in your classroom? Britannica offers trusted, standards-aligned resources and creative tools that help students turn curiosity into deeper understanding. [Contact us](https://britannicaeducation.com/contact/) to bring inquiry-driven learning to your school. Curiosity doesn’t end on April 22. 🌎 ![](https://britannicaeducation.com/wp-content/uploads/2025/09/be-author-kristie-bangali.png) About the Author **Kristie Bangali** *Curriculum & Instruction Learning Specialist* Kristie, a Curriculum Learning Specialist at Britannica Education, has over 20 years of experience in pedagogy and curriculum development. She specializes in aligning educational content with academic standards and adapting to diverse student needs. Kristie’s proficiency with digital learning platforms was pivotal during the Covid-19 pandemic, earning her the 2020 LHRIC TELL Award and 2021 Teacher of the Year. She authored a chapter in “Gamify Literacy: Boost Collaboration and Learning,” published by the International Society for Technology in Education (ISTE), showcasing her innovative approach in education. 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