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Quiz about Oxygen
Quiz about Oxygen

Oxygen Trivia Quiz


The element oxygen.

A multiple-choice quiz by TonyTheDad. Estimated time: 3 mins.
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Author
TonyTheDad
Time
3 mins
Type
Multiple Choice
Quiz #
31,552
Updated
Dec 03 21
# Qns
5
Difficulty
Average
Avg Score
3 / 5
Plays
6700
- -
Question 1 of 5
1. 'Oxygen' means: Hint


Question 2 of 5
2. Oxygen forming the molecule O3 is called: Hint


Question 3 of 5
3. The unstable isotope, O-15, has a half life of about: Hint


Question 4 of 5
4. Molecular oxygen (O2) comprises what percentage of the Earth's atmosphere (at sea level)? Hint


Question 5 of 5
5. What life process of most life forms requires oxygen? Hint



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Quiz Answer Key and Fun Facts
1. 'Oxygen' means:

Answer: acid forming

2. Oxygen forming the molecule O3 is called:

Answer: Ozone

In the upper atmosphere, naturally-occuring ozone protects the Earth from excess ultra-violet rays.
3. The unstable isotope, O-15, has a half life of about:

Answer: 2 minutes

122.2 seconds to be precise
4. Molecular oxygen (O2) comprises what percentage of the Earth's atmosphere (at sea level)?

Answer: 21

Air is 78 percent nitrogen, 21 percent oxygen, and 1 percent other gases.
5. What life process of most life forms requires oxygen?

Answer: respiration

It is used to metabolize fuels (fats, sugars) in life forms. Even though plants create O2 in photosynthesis, at night they need to 'burn' some of the fuel they created.
Source: Author TonyTheDad

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