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Do plants give off carbon dioxide at night?

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Actually, plants DO give off carbon dioxide at night because there is no sunlight for them to be converting CO2 to food and oxygen. Just like us, plants release CO2 as part of their living processes, but during the day they produce much more 02. It is for this reason that plants are removed from the room of a sick person at night to keep the air fresher.

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Is 02 oxygen?
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Yes - O2 is oxygen - CO2 is carbon dioxide. I am sorry I presumed you would know that if you were asking a technical question. The conversion of C02 to oxygen occurs in a process called photosynthesis ("light making" that absorbs carbon dioxide, while it generates sugars and starches, in the process of releasing oxygen as a waste product. As the name suggests, daylight is an essential part of the equation, so it cannot proceed at night,,,,
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The information was very helpful.
I was doing my Science and I was not very sure.
Thanks!!
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Really?? Smh

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rustyboilerz

No, just the opposite. they use the carbon dioxide, and release oxygen.

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The trick is "at night" - the process that releases oxygen can ONLY work during the day as it requires sunlight to function.
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rustyboilerz
I was speaking in general terms. I'm so tired of "trick "questions.
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Teachers do it to see if you really understand the principles involved.
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Plants absorb oxygen from the atmosphere around them and release carbon dioxide during day time. But, they do opposite at night. Therefore, some people says "do not sleep under tree at night it is not good for our ventilation".

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I am sorry - they don't "do the opposite at night" They release carbon dioxide both day and night, but during the daylight hours they make food and release oxygen too.
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So, during daytime they release both O2 and CO2? But I think the amount of CO2 that they release is smaller than that of O2. Am I right or wrong? Please explain to me.
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I thought they absorb O2 and release CO2. during their respiration,
C6H12O6+ 6O2-> 6CO2 ( for photosynthesis) + 6H2O (as solvent for chemical reactions) + energy
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it's the same (night and day) they do the same you do just ask yourself do you breathe at night

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