Earth Day Quiz
the Ultimate Earth Trivia Challenge
Earth Day is an annual event on April 22 to demonstrate support for environmental protection. We created this fun test on Apr 22, 2022, the 52nd Earth Day since 1970 Apr 22.
How much do you know about the planet you’re living on? We have categorized some fun facts into six parts: Chronology / Orbit / Measurement / Life / Atmosphere / Human. Take this quiz now to find out your results!
- The shape of Earth is nearly _________?sphericalcubic
- The Earth's radius (the distance from Earth's center to its surface) is about _____ km.63,0006,300163,000630
- Mount Everest’s peak is the highest altitude above mean sea level at about ______ meters8,8489,6771,96246,912
- For Earth, its polar radius is _____ its equatorial radius.exactly the same asless thangreater than
- Earth orbits the Sun at an average distance of 149.60 _______ km.thousandmillionbillionhundred
- Earth orbits the Sun every _________ mean solar days.72365.256424365
- The Earth’s average orbital speed is _______.1,700,200 km/h170,200 km/h17,200 km/h1,700 km/h
- The axial tilt of Earth is approximately __________.2°5°16°23°
- Our Earth is around __________ old.4.5 to 4.6 billion years1.5 to 2.6 billion years4.5 to 4.6 million years1.5 to 2.6 million years
- The oldest fossils of living organisms are less than _______ years old.0.9 billion1.9 billion2.9 billion3.9 billion
- The continents of Earth move at the same rate as human fingernails grow.TrueFalse
- The name Earth is at least _____ years old.1,0002,0005,00010,000
- The atmosphere of Earth consists of ____% nitrogen, _____% oxygen, traces of argon, carbon monoxide, and water.58 / 4277 / 2195 / 55 / 95
- The atmosphere of Earth is divided into 6 layers - please pick the correct order from ground to space:troposphere, stratosphere, mesosphere, thermosphere, exosphere, and ionospherestratosphere, mesosphere, troposphere, thermosphere, exosphere, and ionospherestratosphere, mesosphere, exosphere, troposphere, thermosphere, and ionospheretroposphere, stratosphere, mesosphere, thermosphere, ionosphere, and exosphere
- Which is the hottest layer of the atmosphere?stratospheremesospherethermospheretroposphere
- Which is the coldest layer of the atmosphere?stratospherethermospheretropospheremesosphere
- Most of our planet is covered by water, around _____.79%71%64%52%
- Life on earth is dominated by plants – they make up ____ of global biomass.89%82%72%66%
- The tiny bacteria, animals, and humans each account for ____, ____ and ____ of global biomass.1%, 5%, 15%13%, 0.4%, 0.01%0.05%, 0.4%, 13%0.05%, 13%, 0.4%
- Livestock accounts for more biomass than all humans on Earth; more than 50% greater than humans.TrueFalse
- The first truly modern humans seem to have appeared between 300,000, and 200,000 years ago in _______.AsiaEast AfricaSoutheast AsiaNorth America
- The first human to orbit Earth was Yuri Gagarin on _________.10 March 196112 April 196125 May 196811 August 1977
- It is estimated that one-eighth of Earth's surface is suitable for humans to live on.TrueFalse
- Earth’s human population passed ________ in the early 2010s.five billionsix billionseven billioneight billion