Why is the upper part of leaf is greener than the lower part.
b) because upper part of leaf contain more number of chloroplast.
a) because upper part of leaf contain less number of chloroplast.
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Answer:
Because the upper part of the leaf contains more chloroplast.... Is the right one
Chloroplasts are plastids which gives green colour to plants
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Answer: because upper part of leaf contains more chlorophyll than lower part
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