Quiz For Earth Day

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| By N.Nagaraja

N.Nagaraja

Community Contributor

Quizzes Created: 1 | Total Attempts: 181

Questions: 15 | Attempts: 181 | Updated: Mar 21, 2023

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15 trivia questions about our planet. See how many of them you can answer correctly and grab your certificate.

Questions and Answers

1.

Where is the Earth located in the Solar System?
- A.
  
  It's the second planet from the Sun.
- B.
  
  It's the third planet from the Sun.
- C.
  
  It's the fourth planet from the Sun.
Correct Answer
B. It's the third planet from the Sun.

Explanation
The order of the planets from the Sun:
Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune,Pluto (which is no longer considered to be a planet)

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2.

How old is the Earth?
- A.
  
  5 million years old.
- B.
  
  10 billion years old.
- C.
  
  4.5 billion years old.
Correct Answer
C. 4.5 billion years old.

Explanation
That is 4,500,000,000 years - quite a long time indeed.

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3.

Which is the largest ocean on our planet?
- A.
  
  The Pacific Ocean.
- B.
  
  The Atlantic Ocean.
- C.
  
  The Indian Ocean.
Correct Answer
A. The Pacific Ocean.

Explanation
It covers more than 32% of the globe, which is more than the total surface of land combined.

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4.

Which is the largest island?
- A.
  
  Madagascar.
- B.
  
  New Guinea.
- C.
  
  Greenland.
Correct Answer
C. Greenland.

Explanation
The total area of Greenland is 2,166,086 km2 (836,109 sq miles).

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5.

Which extinct bird lived on Mauritius?
- A.
  
  The phoenix.
- B.
  
  The emu.
- C.
  
  The dodo.
Correct Answer
C. The dodo.

Explanation
You can read more about the dodo, which became extinct in the 17th century, here:

http://en.wikipedia.org/wiki/Dodo

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6.

How old are the oldest trees?
- A.
  
  3000 years old.
- B.
  
  6000 years old.
- C.
  
  9000 years old.
Correct Answer
B. 6000 years old.

Explanation
These are the African Baobab trees.

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7.

Which is the fastest land animal?
- A.
  
  The ostrich.
- B.
  
  The giraffe.
- C.
  
  The cheetah.
Correct Answer
C. The cheetah.

Explanation
Cheetahs can run at the speed of 110 km/hours for a few seconds.

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8.

What is the percentage of oxygen in the Earth's atmosphere?
- A.
  
  18
- B.
  
  21
- C.
  
  31
Correct Answer
B. 21

Explanation
Dry air contains roughly 78% nitrogen, 21% oxygen, 0.93% argon, 0.038% carbon dioxide, and small amounts of other gases.(wikipedia)

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9.

What percentage of the Earth's surface is covered in water?
- A.
  
  50
- B.
  
  60
- C.
  
  70
Correct Answer
C. 70

Explanation
Approximately 70% of the Earth's surface is covered in water. This includes the oceans, seas, lakes, rivers, and other bodies of water. The remaining 30% consists of landmasses, such as continents and islands.

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10.

Which is the longest mountain range on the planet?
- A.
  
  The Himalayas.
- B.
  
  The Rockies.
- C.
  
  The Andes.
Correct Answer
C. The Andes.

Explanation
The range of the Andes is over 7,000 km (4,300 miles) long.

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11.

Which is the highest waterfall in the world?
- A.
  
  Niagara
- B.
  
  Angel
- C.
  
  Iguazú
Correct Answer
B. Angel

Explanation
The Angel waterfall is in Venezuela and it's 980 m / 3,212 ft tall.

video: http://www.youtube.com/watch?v=BVR5CvekD7s

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12.

Who was the first explorer to reach the South Pole?
- A.
  
  Roald Amundsen
- B.
  
  Ernest Shackleton
- C.
  
  Robert Falcon Scott
Correct Answer
A. Roald Amundsen

Explanation
The Norwegian explorer and his party reached the South Pole in 1911.

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13.

What do you call the variation of life forms within an ecosystem?
- A.
  
  Evolution
- B.
  
  Biology
- C.
  
  Biodiversity
Correct Answer
C. Biodiversity

Explanation
Full definition of biodiversity on wikipedia:

"Biodiversity is the variation of life forms within a given ecosystem, biome, or on the entire Earth. Biodiversity is often used as a measure of the health of biological systems. The biodiversity found on Earth today consists of many millions of distinct biological species. The year 2010 has been declared as the International Year of Biodiversity."

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14.

Do dolphins have teeth?
- A.
  
  Yes.
- B.
  
  No.
- C.
  
  Only the bottlenose dolphins.
Correct Answer
A. Yes.

Explanation
Dolphins are intelligent and cute and even funny at times, but they are predators. They eat fish and squid. They need to have teeth.

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15.

Above what altitude are travelers considered to be astronauts?
- A.
  
  30 kms (18.6 miles).
- B.
  
  50 kms (31 miles).
- C.
  
  80 kms (50 miles).
Correct Answer
C. 80 kms (50 miles).

Explanation
This height is a US definition of being an astronaut. In other parts of the world it can be different. Space doesn't have a clear boundary.

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