Andrea's answer to Jonathan's Primary 4 Science Singapore question.

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Andrea
Andrea's answer
10 answers (Tutor Details)
1st
I think the ans may be wrong… I’m not v sure. C cant be true bcos it def has to be transparent or at least translucent, which means light has to pass thru if not it wont reach the others. So I’m guessing the ans is wrong but I may not be correct.