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Earth Day Quiz

On Earth Day, it’s especially important to remember all of the amazing things our planet has to offer us. To commemorate this holiday, we have created a quiz that will help you learn more about our beautiful home. Test your knowledge and see how much you really know about Earth!

  • Question of

    What is the second most common gas found in the air we breathe?

    • Oxygen
    • Nitrogen
    • Hydrogen
    • Argon

    Correct Wrong

    Nitrogen -- N2 -- 78.084% - Oxygen -- O2 -- 20.9476% - Argon -- Ar -- 0.934% - Carbon Dioxide -- CO2 -- 0.0314% - Neon -- Ne -- 0.001818% - source: thoughtco.com/chemical-composition-of-air-604288

  • Question of

    The Great Barrier Reef is the world’s largest coral reef system. Off which country is it located?

    • Australia
    • United States
    • Costa Rica
    • Argentina

    Correct Wrong

  • Question of

    Which is hotter, the temperature of the center of the Earth or the temperature on the surface of the sun?

    • Earth
    • Sun
    • they are about the same

    Correct Wrong

    Earths core temperature is at a staggering 10,800 degrees Fahrenheit. This superheated core, says the BBC, is about as hot as the surface of the Sun. source: smithsonianmag.com/smart-news/the-center-of-the-earth-is-as-hot-as-the-sun-43631207/

  • Question of

    According to the EPA, how much water does the average American use every day?

    • 82
    • 65
    • 102
    • 51

    Correct Wrong

    Each American uses an average of 82 gallons of water a day at home (USGS, Estimated Use of Water in the United States in 2015). source: epa.gov/watersense/statistics-and-facts

  • Question of

    The deepest point in the world’s oceans is said to be 11,034 meters deep. This ocean trench is called:

    • Mariana Trench
    • Tonga Trench
    • Japan Trench
    • Mid-America Trench

    Correct Wrong

  • Question of

    As seen from space, which is the brightest city on Earth?

    • Las Vegas
    • London
    • New York
    • Tokyo

    Correct Wrong

  • Question of

    What is the largest living organism on Earth?

    • the fungus Armillaria ostoyae
    • the Blue Whale
    • the giant sequoia-Sequoiadendron giganteum
    • the Pando tree-Populus tremuloides

    Correct Wrong

    The Armillaria ostoyae is a type of fungus that lives above ground in hardwood and coniferous forests. It is also the world's biggest and most expansive living organisms. source: worldatlas.com/articles/what-is-the-largest-living-thing-in-the-world.html

  • Question of

    When is Earth day?

    • April 22
    • June 20
    • May 1
    • March 26

    Correct Wrong

  • Question of

    What two materials make up MOST of the Earth’s inner core?

    • iron and nickel
    • iron and platinum
    • iron and sulfer
    • iron and chromium

    Correct Wrong

    Iron 80% - Nickel 5-15% - Siderophiles 2-3% - Sulfur and Oxygen 5-10% - source: study.com/learn/lesson/inner-core-earth-composition-facts-description.html

  • Question of

    Under extreme heat and pressure, graphite turns into diamond. Graphite is crystalline form of which element:

    • carbon
    • magnesium
    • nickel
    • lead

    Correct Wrong

  • Question of

    If all of the sunlight that hit the Earth’s surface in 90 minutes could be converted to electricity-it would power the planet for an entire year.

    • TRUE
    • FALSE

    Correct Wrong

    The amount of sunlight that strikes the earth's surface in an hour and a half is enough to handle the entire world's energy consumption for a full year. source: energy.gov/eere/solar/how-does-solar-work

  • Question of

    More than 50% of the Oxygen we breathe comes from:

    • the oceans
    • forests
    • clouds
    • flowering plants

    Correct Wrong

    Scientists estimate that 50-80% of the oxygen production on Earth comes from the ocean. The majority of this production is from oceanic plankton — drifting plants, algae, and some bacteria that can photosynthesize source: oceanservice.noaa.gov/facts/ocean-oxygen.html

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