Why do dark colours absorb heat?, Science

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Question 1 Outline the risks of nuclear fissions

Question 2 Comment on semiconductor devices and their usage

Question 3 In a total system approach, what are the various factors which should be kept in mind while planning a large dam or a thermal power station

Question 4 What are the requisites of self - reliance?

Question 5 Why do dark colours absorb heat?

Question 6 Why is lead dangerous?

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