Associate Lifestyle Reporter
Earth Day is on Tuesday, April 22, this year. The annual observation is set aside to increase awareness around environmental issues like climate change, pollution, endangered species and other global concerns, along with encouraging citizens to take action in helping protect and preserve the planet.
After all, Mother Earth is the only home humans, plants and animals have got, so taking care of her is nothing short of paramount. However you plan to observe the April holiday, make sure to brush up on your planetary proficiency with this fun and fascinating Earth Day quiz. Test your knowledge on all things related to the earth using this list of trivia questions and answers about the planet. Some of these questions are easy enough for kids to answer, while other Earth Day queries are guaranteed to challenge even the most ardent of environmentalists. For example: What are the four main layers of the earth? They would be the inner core, the outer core, mantle and crust. What about this one: What percentage of the Earth’s surface is covered in water? The answer is 71 %. If you guessed those answers correctly, then don't stop now because, clearly, your knowledge of the earth is next level. Even if you didn't, not to worry, because after taking this Earth Day quiz, you'll be an expert on the beloved blue planet. So, read on to find out how much you know and while you're at it, don't forget to show Mother Earth some love this Earth Day and every day. Earth Day Quiz Questions Roughly how much of the earth's surface is covered by clouds at any given time? Answer: 67%Carbon monoxide, lead, nitrogen dioxide, sulfur dioxide, smoke and particulate matter are all examples of what? Answer: Air pollutantsWhich planet is the fifth largest in the solar system? Answer: EarthWhat are the four main layers of the earth? Answer: The inner core, the outer core, mantle and crustHow many moons does the earth have? Answer: One What microscopic organisms found on the ocean's surface help remove carbon dioxide from the air? Answer: PhytoplanktonApollo 11 was the first space mission to accomplish what? Answer: Land on the moonWhat do you call an opening or vent on the earth's surface where lava and steam can erupt? Answer: VolcanoThe earth is the _____________ planet from the sun. Answer: ThirdHow many seasons are there in a year? Answer: Four. Spring, summer, winter and fall What layer in the earth's stratosphere helps absorb harmful radiation and UV light from the sun? Answer: The ozone layerThe imaginary line that divides the earth's Northern and Southern hemispheres is called what? Answer: The equatorWhat species do modern humans belong to? Answer: Homo sapiensThough the earth appears to be round, what is its actual shape? Answer: An ellipsoid or sphereChichen Itza, one of the New Seven Wonders of the World, is found in what country? Answer: Mexico Located above the earth's north pole, Polaris, is also known as what? Answer: The North StarWhat region on Earth produces 20% of the planet’s oxygen? Answer: The Amazon rainforestWhat is the greenhouse effect? Answer: When the gases in our atmosphere prevent heat from escaping the planetHow tall is the world’s tallest living tree? Answer: 380 feet tallHow much water does the average person use per day? Answer: Around 100 gallonsWhich is the largest ocean on Earth? Answer: The Pacific Ocean What is the most eco-friendly energy source? Answer: WindHow much oxygen does the ocean produce? Answer: About 50% of the earth’s supplyWhat is the smallest mammal on Earth? Answer: The Etruscan shrewWhat’s the largest active volcano on the planet? Answer: Mauna Loa, in HawaiiHow deep is the Grand Canyon? Answer: 6,000 feet deep How much oxygen does one tree produce each year? Answer: Around 260 poundsWhat is the tallest mountain in the U.S.? Answer: Denali, at 20,310 feet tallWhich ecosystem on land has the most biodiversity? Answer: Tropical rainforestsHow much water is used in the U.S. each day? Answer: 322 billion gallonsWhich country has the most biodiversity? Answer: Brazil What is the largest animal on Earth? Answer: The Antarctic blue whaleHow much water do you use in a 10 minute shower? Answer: 20 gallonsWhich material makes up the greatest percentage of annual waste in the U.S.? Answer: PaperHow many people participate in Earth Day each year worldwide? Answer: 1 billionWhich nonfiction book set the Earth Day movement in motion? Answer: “Silent Spring” by Rachel Carson What is the most abundant gas in Earth’s atmosphere? Answer: NitrogenWhat are the three “R’s” of waste management? Answer: Reduce, reuse and recycleHow fast does the Earth orbit the sun? Answer: 67,000 miles per hourWhat is the world’s largest coral reef? Answer: The Great Barrier Reef off the coast of AustraliaHow deep is the deepest part of the ocean? Answer: 35,876 feet deepWhat is the tallest mountain on Earth? Answer: Mount Everest, at 29,035 feet tall What is the largest hot desert in the world? Answer: The Sahara DesertWhat is the largest cold desert in the world? Answer: AntarcticaWhat percentage of the Earth’s surface is covered in water? Answer: 71%How many countries celebrate Earth Day? Answer: Over 193
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