198 Earth Trivia Questions with Answers
198 public questions with answers, drawn from the well. How many can you answer?
What is the approximate circumference of Earth at the equator?
Answer
40,075 km
What is the approximate mass of Earth in kilograms?
Answer
5.97 x 10^24 kg
What is the process by which tectonic plates move apart at mid-ocean ridges?
Answer
Seafloor spreading
What is the name of the cold ocean current that flows along the west coast of South America?
Answer
Humboldt Current
What is the current geological epoch?
Answer
Holocene
Which layer of Earth is composed of liquid iron and nickel?
Answer
Outer core
What is the place with the highest average annual rainfall on Earth?
Answer
Mawsynram
What is the name of the ductile layer beneath Earth's lithosphere?
Answer
Asthenosphere
What is the deepest canyon on Earth?
Answer
Yarlung Tsangpo Grand Canyon
In which layer of Earth's atmosphere do auroras occur?
Answer
Thermosphere
What is the driving force of plate tectonics?
Answer
Mantle convection
What is the largest desert in Africa?
Answer
Sahara
What is the name of the ocean between Africa and Australia?
Answer
Indian Ocean
What is the longest mountain range on land?
Answer
Andes
What is the highest active volcano on Earth?
Answer
Ojos del Salado
What is Earth's escape velocity in km/s?
Answer
11.2 km/s
What is Earth's orbital eccentricity?
Answer
0.0167
What is the length of a sidereal day on Earth?
Answer
23 hours 56 minutes
What is Earth's average albedo?
Answer
0.3
What is Earth's average density in g/cm³?
Answer
5.51 g/cm³
Which mountain has the greatest height from its base to its summit?
Answer
Mauna Kea
What is the mean radius of Earth in kilometers?
Answer
6,371 km
What is a common nickname for Earth due to its water coverage?
Answer
Blue Planet
What is Earth's position from the Sun?
Answer
Third
What is the name of Earth's highest mountain?
Answer
Mount Everest
What is the name of the seismic discontinuity between Earth's crust and mantle?
Answer
Mohorovičić discontinuity
What is the estimated age of the Earth in billions of years?
Answer
4.54 billion years
What is the name of the ocean current that circles Antarctica?
Answer
Antarctic Circumpolar Current
In which layer of the atmosphere do most meteors burn up?
Answer
Mesosphere
What is the process by which water changes from liquid to gas?
Answer
Evaporation
In which layer of the atmosphere is the ozone layer located?
Answer
Stratosphere
What imaginary line divides the Earth into Eastern and Western Hemispheres?
Answer
Prime Meridian
Which continent has the most countries?
Answer
Africa
What is the process of Earth's magnetic field polarity reversal called?
Answer
geomagnetic reversal
What theory explains the formation of the Moon?
Answer
giant-impact hypothesis
What is the most abundant mineral group in Earth's crust?
Answer
feldspar
What is the point in Earth's orbit farthest from the Sun?
Answer
aphelion
What warm ocean current influences northwest Europe's climate?
Answer
Gulf Stream
What is the process of rock breakdown by chemical reactions called?
Answer
chemical weathering
What is Earth's equatorial circumference in kilometers?
Answer
40,075 kilometers
What is the sea that separates Africa from Europe?
Answer
Mediterranean Sea
What is the layer of the atmosphere where weather occurs?
Answer
troposphere
What is the term for the region of Earth where life exists?
Answer
biosphere