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Challenging Earth Trivia Trivia Quiz

We all call it home, but how much do you really know about this planet we call Earth? This quiz is very challenging, and only for those who consider themselves down to Earth.

A multiple-choice quiz by Natsirt. Estimated time: 6 mins.

Author
Natsirt

Time
6 mins

Type
Multiple Choice

Quiz #
39,488

Updated
May 05 22

# Qns
15

Difficulty
Difficult

Avg Score
7 / 15

Plays
4444

Last 3 plays: bakeryfarm (7/15), Guest 156 (6/15), PurpleComet (13/15).

One at a Time - Single Page - Timed Game

Question 1 of 15

1. How many kilometers, on average, is Earth away from the Sun? Hint

132,400,000

149,600,000

192,600,000

98,700,000

NEXT>

Question 2 of 15

2. The core of the Earth is mostly composed of what element? Hint

Oxygen

Magnesium

Silicon

Iron

NEXT>

Question 3 of 15

3. What temperature can the center of Earth's core reach up to? Hint

5000 K

7500 K

4000 K

12000 K

NEXT>

Question 4 of 15

4. What percentage of the Earth's surface is covered in water? Hint

NEXT>

Question 5 of 15

5. The Earth's atmosphere is primarily made up of what gas?

Answer: (One Word)

NEXT>

Question 6 of 15

6. What gas is primarily responsible for an enhanced greenhouse effect thought to result in global warming?

Answer: (Two Words)

NEXT>

Question 7 of 15

7. How old is the Earth? Hint

4.8 to 5.0 Billion Years

5.0 to 5.1 Billion Years

4.5 to 4.6 Billion Years

4.0 to 4.2 Billion Years

NEXT>

Question 8 of 15

8. Roughly every how many years does Earth's magnetic field change direction, or reverse polarity? Hint

70,000

40,000,000

9,000,000

500,000

NEXT>

Question 9 of 15

9. The interaction between the Earth and the Moon slows the Earth's rotation by how many milliseconds per century? Hint

NEXT>

Question 10 of 15

10. The name of Earth is derived from words meaning what in English and German? Hint

Blue

Round

Ground

Green

NEXT>

Question 11 of 15

11. What is the name of the station which experienced the lowest temperature ever recorded? Hint

Zastok Station

Yastok Station

Tastok Station

Vostok Station

NEXT>

Question 12 of 15

12. The equatorial circumference of Earth, to the nearest 10km, is 40,070.

True

False

NEXT>

Question 13 of 15

13. What is the name (in Bangladesh) of the phenomenon, which may be caused by earth tremors that are too weak to be felt, that sounds like a distant cannon especially on or near the water? Hint

Karisal Guns

Barisal Guns

Garisal Guns

Darisal Guns

NEXT>

Question 14 of 15

14. How long does it takes the Earth to rotate on its axis? Hint

23 hours and 30 minutes

23 hours and 56 minutes

23 hours and 38 minutes

24 hours and 10 minutes

NEXT>

Question 15 of 15

15. Complete this quote from USA Astronaut Edgar Mitchell: 'My view of our planet was a glimpse of _______.' Hint

paradise

perfection

divinity

creation

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Most Recent Scores

Apr 16 2024 : bakeryfarm: 7/15
Apr 16 2024 : Guest 156: 6/15
Apr 16 2024 : PurpleComet: 13/15
Mar 20 2024 : Guest 151: 0/15
Mar 19 2024 : Guest 171: 0/15
Mar 04 2024 : Guest 62: 2/15
Mar 03 2024 : Guest 213: 7/15
Feb 22 2024 : Guest 112: 7/15

Score Distribution

Quiz Answer Key and Fun Facts

1. How many kilometers, on average, is Earth away from the Sun?

Answer: 149,600,000

The actual answer is that on average the Earth is 149,597,870.691 km away from the Sun, or 1 astronomical unit (AU). To put this in perspective if a alien UFO travelled at the speed of 100 miles per hour (160 kph) it would take our little green friends over 100 years to go 1 AU.

2. The core of the Earth is mostly composed of what element?

Answer: Iron

Iron equates to to 34.6 percent of the core, while oxygen is 29.5 percent, silicon is 15.2 percent, and magnesium is 12.7 percent to round out the top four.

3. What temperature can the center of Earth's core reach up to?

Answer: 7500 K

To put this in perspective, the surface of the Sun only reaches temperatures of about 5800 K.

4. What percentage of the Earth's surface is covered in water?

Answer: 71

Be thankful you can have a glass of water since Earth is the only planet where water can exist in liquid form on the surface. There may be liquid ethane or methane on Titan's surface and liquid water beneath the surface of Europa, but then again don't get your hopes up.

5. The Earth's atmosphere is primarily made up of what gas?

Answer: Nitrogen

Nitrogen makes up approximately 77 percent of the atmosphere with oxygen in second with 21 percent.

6. What gas is primarily responsible for an enhanced greenhouse effect thought to result in global warming?

Answer: Carbon dioxide

The greenhouse effect is vital in raising the average surface temperature from a frigid -31 celsius to a comfortable +14 celsius. Without it we'd all be popsicles, and the oceans would turn into one large ice rink. However, due to the burning of fossil fuels more carbon dioxide is being emitted into the air, and thus this is contributing to global warming.

7. How old is the Earth?

Answer: 4.5 to 4.6 Billion Years

Even though the Earth is 4.5 to 4.6 billions years old the oldest known rocks are about 4 billion years old and rocks older than 3 billion years are rare. The oldest fossils of living organisms are less than 3.9 billion years old.

8. Roughly every how many years does Earth's magnetic field change direction, or reverse polarity?

Answer: 500,000

The change is very gradual, and takes up to 5000 years to complete. In the past 75 million years 171 reversals have occurred. However no compass manufacturing companies have yet benefited from this event.

9. The interaction between the Earth and the Moon slows the Earth's rotation by how many milliseconds per century?

Answer: 2

Current research shows that about 900 million years ago there were 481 18-hour days in a year.

10. The name of Earth is derived from words meaning what in English and German?

Answer: Ground

The name came from the Old English ertha or eorthe, or the German version which is erde. Either way, it just means ground or soil.

11. What is the name of the station which experienced the lowest temperature ever recorded?

Answer: Vostok Station

And boy was it ever cold! At -89.6 degrees celsius (-128.6 degrees fahrenheit) it was definitely hot cocoa weather. In complete contrast the highest recorded temperature ever recorded was 58 degrees celsius (136 degrees farenheit) at Al Aziziyah, Libya.

12. The equatorial circumference of Earth, to the nearest 10km, is 40,070.

Answer: True

And to prevent someone from lodging a correction the actual number is 40,065.5 km.

13. What is the name (in Bangladesh) of the phenomenon, which may be caused by earth tremors that are too weak to be felt, that sounds like a distant cannon especially on or near the water?

Answer: Barisal Guns

They are named Barisal Guns because they are often heard near the city of Barisal, in Bangladesh. The phenomenon has different names in other parts of the world.

14. How long does it takes the Earth to rotate on its axis?

Answer: 23 hours and 56 minutes

In comparison it takes Mercury 58 days, 15 hours, and 36 minutes to rotate on its axis while Saturn only takes 10 hours and 40 minutes.

15. Complete this quote from USA Astronaut Edgar Mitchell: 'My view of our planet was a glimpse of _______.'

Answer: divinity

Hope you enjoyed my quiz, and I hope you learned something of the planet we all live on.

Source: Author Natsirt

This quiz was reviewed by FunTrivia editor CellarDoor before going online.
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