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

Ask Singapore Homework?

Upload a photo of a Singapore homework and someone will email you the solution for free.

Question

primary 6 | Science
One Answer Below

Anyone can contribute an answer, even non-tutors.

Answer This Question

primary 6 Science Singapore

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

Date Posted: 5 years ago

Comments 4 add a comment

Shirley

5 years ago

could it be because cooled boiled water has less oxygen within since the oxygen was already expelled when the water was boiling.

Ming

5 years ago

Thank you.

Alicia Ng

5 years 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

5 years ago

Thank you :)