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primary 6 | Science
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Ming
Ming

primary 6 chevron_right Science chevron_right Singapore

Is anyone can answer this question?
Thank you in advance:)

Date Posted: 4 months ago
Views: 88
Shirley
Shirley
4 months ago
could it be because cooled boiled water has less oxygen within since the oxygen was already expelled when the water was boiling.
Ming
Ming
4 months ago
Thank you.
Alicia Ng
Alicia Ng
4 months ago
Cooled boiled water refers to boiled water that has been cooled for no more than 30 minutes after boiling, so it's no cooler than 70 degrees Celsius. At temperatures above 20 degrees Celsius, the rate of photosynthesis decreases because the enzymes do not work as efficiently at this temperature.
Ming
Ming
4 months ago
Thank you :)

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Timothy Tay
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