Chua Yong Qi's answer to Help's Primary 6 Maths Ratio Singapore question.

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Chua Yong Qi
Chua Yong Qi's answer
22 answers (Tutor Details)
1st
The upper side of the leaf is exposed to more sunlight, so there are more chloroplasts for the plant to capture more light energy from the sun, to carry out photosynthesis at a higher rate.