Answers

2016-05-07T11:53:59+05:30
Because they take long time to digest and therfore dont provide instant energy when consumed.
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2016-05-07T12:27:44+05:30
Simple carbohydrates provide instant energy whereas complex carbohydrates do not  because simple carbohydrates do not need to be broken down into simpler molecules whereas in complex carbohydrates it needs to be broken down into simpler molecules and it takes longer to digest. thus Simple carbohydrates provide instant energy whereas complex carbohydrates do not .
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hope it helps u..............plzz mark my answer as brainliest