GK
PHYSICS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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select the correct one about oxygen
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oxygen is dissolved in water
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oxygen is harmful for us
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oxygen is 30 percent in air
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None of the above
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Explanation:
Detailed explanation-1: -Which of the following is true about the dissolved oxygen levels in water streams? It is maximum at around midnight.
Detailed explanation-2: -A small amount of oxygen, up to about ten molecules of oxygen per million of water, is actually dissolved in water.
There is 1 question to complete.