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Teleostomi Posted 20 years ago
Vocabulary

levels



They usually have to do this in foul water, when bacterial decay reduces oxygen levels.

Why does "level" have to be in plural? I often see "levels" like this, but I don't know why they are in plural
  

Top answer

Teleostomi They usually have to do this in foul water, when bacterial decay reduces oxygen level s . Why does "level" have to be in plural? I often see "levels" like this, but I don't know why they are in plural My guess: the level of anything is in constant flux.

— Philip

  • Teleostomi They usually have to do this in foul water, when bacterial decay reduces oxygen level s .
  • Why does "level" have to be in plural?
  • I often see "levels" like this, but I don't know why they are in plural My guess: the level of anything is in constant flux.
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4 Answers
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Teleostomi


They usually have to do this in foul water, when bacterial decay reduces oxygen levels.

Why does "level" have to be in plural? I often see "levels" like this, but I don't know why they are in plural
My guess: the level of anything is in constant flux
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The author must be thinking of multiple locations within the body of water.
If a single location was meant, you could say
The oxygen level near the waste pipe is low
but you could not say
* The oxygen levels near the waste pipe are low
You could say
The oxygen levels throughout the lake are low, especially near the pipe, where the level is the lowest it has ever bee
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JrdavisThe author must be thinking of multiple locations within the body of water.
That was my reading too.
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Thanks, everybody!

I'm glad I asked this question, otherwise I wouldn't have known the usage forever!
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